Syrian rebels use toxic gas in Aleppo

Syrian state media claims rebels fired shells containing toxic gas into government-held parts of Aleppo.

Russia: Report on Syria chemical weapons unconvincing

Russia dismisses UN-led investigation showing that Syrian forces carried out three chemical attacks, opposes sanctions.

Syrian government uses chemical weapons - again

Syrian gov't uses chemical weapons a third time, Security Council 'to discuss report' only on Thursday.

ISIS could use chemical weapons, warn American officials

The United States expects ISIS to use crude chemical weapons against those trying to conquer the city of Mosul.

Amnesty International: Sudan used chemical weapons on own people

Sudanese government carried out multiple attacks using chemical weapons on own civilians, according to report by Amnesty International

Pentagon: ISIS is preparing a chemical attack

Pentagon spokesman warns the Islamic State is determined to use chemical arms and likely to try them again in Iraq.

ISIS uses mustard agent in Iraq

American officials say ISIS fired a shell containing mustard agent that landed at a based used by Amercan and Iraqi troops.

Coalition planes destroy ISIS chemical factory near Mosul

Pentagon says US-led warplanes destroyed ISIS factory used to produce chemical weapons, confirming longstanding suspicions.

Will Syria gas attacks probe condemn the Assad regime?

A yearlong investigation to determine who is behind deadly chemical attacks in Syria takes center stage at the United Nations this week.

Russia accuses Syrian rebels of using poison gas

Russian defense ministry says seven people died in an attack by Syrian rebels using weapons loaded with a "poisonous agent".

IDF Prepares for Possible Chemical Warfare Threat

ISIS is reportedly already moving chemical weapons into Syria and Iraq, causing concerns for Israel.

Israel believes Syria used sarin gas on ISIS

Did Assad save his deadliest weapon despite an international effort to destroy his arsenal?

Syrian opposition: Hezbollah using chemical weapons

Lebanese terrorist group accused of using chemical weapons against rebel areas, particularly in Aleppo and Ghouta.

Watchdog: ISIS may be manufacturing its own chemical weapons

Head of Organization for the Prohibition of Chemical Weapons warns of evidence jihadists now capable of producing WMDs.

Report: Israel hunting chemical-armed ISIS terrorists in Golan

Israeli intelligence agencies in a race against time against ISIS cell located on Syrian side of the border, according to report.

'Clear and present threat' of chemical attacks in Europe

Russia calls for tougher measures against rebel groups in Syria, warning future terror attacks in Europe could involve chemical weapons.

161 chemical weapons reportedly used during Syrian conflict

The Syrian American Medical Society reports 1,491 deaths caused by chemical attacks, with 14,581 people injured.

Iraqi PM promises retaliation after ISIS chemical weapons attack

One killed, hundreds injured in ISIS mustard gas attack. Iraq vows to retaliate.

Iraqi girl dies after ISIS chemical attack

Three-year-old Iraqi girl dies after being wounded in an ISIS chemical attack near Kirkuk.

US coalition strikes ISIS chemical weapon sites

Captured ISIS operative proves to be a treasure trove of intel, helping US launch first air strikes on the jihadists' chemical weapons.

State Department 'aware' of reports of Syria chemical attacks

State Department spokesman: Washington is aware of reports that chemical weapons were used in Syria, but can't confirm them.

Lights out for Syria as electricity mysteriously cut nationwide

In the midst of a partial ceasefire, Syria's electric grid suddenly shut down, cutting off power nationwide. Internet services also cut.

Yaalon: Syrian regime used chemical weapons during ceasefire

Israeli Defense Minister claims regime forces have carried out several chemical attacks involving chlorine gas since onset of ceasfire.

Watch: Iran gears up for chemical war

In unveiling new weapons including chemical suits, medicine for chemical agents, Defense Minister vows to continue 'foiling' US sanctions.

Sanders adviser suggests Israel gassed Syrians

Foreign policy adviser to Bernie Sanders bashes 'Jewish lobby' controlling America, suggests Israel may have gassed Syrians in 2013.

UN team probing chemical attacks to visit Syria in March

UN team tasked with identifying those responsible for chemical attacks in Syria will begin investigations in early March.

ISIS is using chemical weapons

The Islamic terror group produced, used chemical weapons on Iraqi Kurds, reports OPCW, in first known chemical terrorism in 20 years.

CIA chief: ISIS has used and can make chemical weapons

CIA director John Brennan warns that ISIS has the capability to make small quantities of chlorine and mustard gas.

Former Libyan official: ISIS got Qaddafi's chemical weapons

Libyan former intelligence official claims terrorist groups got hold of Qaddafi's chemical weapons arsenal and then smuggled it to Syria.

Syria denies using chemical weapons in civil war

Syria tells global watchdog it is fully cooperating with the destruction of its toxic stockpile, as agreed upon in 2013.

Tests Show ISIS Used Mustard Gas on Kurds

Blood samples show ISIS used chemical weapons in assault against Kurdish forces in Iraq.

US: 'We Know ISIS is Using Mustard Gas'

The US intelligence community is convinced ISIS has manufactured, or found, mustard gas - and moved on to chemical warfare.

Doctors Without Borders: Syrians Likely Exposed to Chemicals

Doctors Without Borders reports treating four patients in Syria who showed symptoms of exposure to chemical agents.

Early Tests Find Traces of Mustard Gas in ISIS Mortars

Senior American military official confirms preliminary tests show traces of sulfur mustard on mortars fired by ISIS.

Chemical Watchdog 'Concerned' by ISIS Use of Mustard Gas

Organization for the Prohibition of Chemical Weapons voices serious concern over reports that ISIS used chemical weapons.

Testing Confirms ISIS Used Mustard Gas in Syria

Officials say test results from ISIS attack in Syria confirm mustard agent was used. Similar attack in Iraq still under investigation.

Report: ISIS Used Mustard Gas Against Kurds in Iraq

Senior American officials say it is believed ISIS jihadists used mustard agent in an attack on Kurdish forces in Iraq.

Prelude to Iran?

Officials: Despite Inspections, Syria Kept its Chemical Arsenal

Inspectors reveal regime lied to them and hid chemical arsenal, but Western governments refused to press Assad.

Syrian Kurds Say ISIS Used Chemicals Against Them

Kurds, monitoring group say ISIS fighters fired missiles containing toxic gas at Kurdish forces in Syria last month.

Entire Syrian Chemical Weapon Stock Destroyed

OPCW hails completion of 2-year mission to destroy Syria's sarin and mustard gas stores.

Report: Israel Helped Obama Prevent Syria Strikes

New book alleges top Israeli officials pitched intervention plan on Syria chemical weapons fiasco - and set poor precedent for Iran.

Russia Wants Answers on Syria Chlorine Gas Attacks

Even Syria's longtime ally says an investigation is warranted into reports of up to 45 attacks in recent months on innocent Syrians.

Ya'alon: Chemical Threat from Syria Has Dropped

Defense Minister says the chemical threat from Syria has dropped due to international pressure.

Diplomats: Traces of Undeclared Sarin and VX Found in Syria

International inspectors have found traces of sarin and VX nerve agent in Syria that had not been declared to the OPCW.

Assad: There Are No Iranian Troops in Syria

Syria's President admits he invited Hezbollah to fight alongside his regime but denies Iran has sent troops to participate in the civil war.

Assad Has 'Paid no Price for Chemical War Crimes'

UN Security Council hears evidence from doctors of chemical attacks; 'attacks come from helicopters - which only Assad has.'

HRW: 'Strong Evidence' Syrian Regime Used Chlorine Gas Again

Pair of attacks in Idlib province likely from regime helicopters, rights group insists.

UN Head of Disarmament Steps Down

Representative in charge of disarming Syria's chemical weapons steps down, will be replaced by adviser to Ban Ki-Moon.

ISIS Chemical Weapon Attack - in Indonesia?

Indonesian police say gas attack in Jakarta last month was the work of jihadists returning home from Syria.

Syria Starts Razing Chemical Weapons Sites

OPCW: Syrian regime destroying terror tunnels, chemical smuggling routes in long-awaited move as part of international deal.

UN Investigators Highly Confident Chlorine Was Used in Syria

Chemical weapons investigators conclude "with a high degree of confidence" that chlorine gas was used in Syria last year.

Israel to Halt Majority of Gas Mask Production

Gas mask production for civilians and IDF soldiers will cease due to reduced chemical weapons threat from Syria.

UN Official: Israel Should be Investigated for Chemical Weapons

Israel has a large store of chemical weapons, a top UN official charged Wednesday, calling for an investigation into Israel's cache.

Syria: We Didn't Use Chlorine - 'Terrorists' Did

Syria’s deputy foreign minister denies his government used chemical weapons or chlorine, places the blame on the rebels.

Report: ISIS Used Chemical Weapons Against Iraqi Forces

Rumored chlorine gas attack in Iraq raises questions - was the group's stronghold in Syria responsible for other attacks?

ISIS Captures Saddam's Chemical Weapons Complex

After capturing Iraq's largest oil refinery and becoming 'world's richest terror group,' ISIS captures Saddam-era chemical facility.

Syria Denies Using Chlorine Gas Against Civilians

"Chlorine gas has never been used by the government," claims Syria’s Deputy Foreign Minister in an interview.

Scientific Analysis Confirms Use of Chlorine in Syria

Scientific analysis conducted for the Telegraph finds traces of chlorine and ammonia present at the site of three attacks in Syria.

UN Calls for Investigation Into Syrian Chlorine Attack

United Nations Security Council calls for an investigation into reports of alleged chlorine gas use in some Syrian towns.

Another Massacre?

'Video Evidence' of Fresh Syrian Chemical Attack

Activists claim Assad regime killed over 100 in chemical attack in Idlib province; videos show victims and alleged chemical bombs.