Moshe Yaalon
Moshe Yaalon Ariel Hermoni/Defense Ministry

Israeli Defense Minister Moshe Yaalon has accused the Syrian regime of Bashar al-Assad of using chemical weapons against civilians on several occasions since the current ceasefire began in the war-torn country.

"The Syrians used military grade chemical weapons and lately have been using materials, chlorine, against civilians, including in these very days, after the supposed ceasefire, dropping barrels of chlorine on civilians," he said, in comments made at a military technology conference near Tel Aviv, according to Reuters.

Yaalon did not give any further details of when or where the attacks took place, or how many people were killed or injured in them.

The ceasefire, which began earlier this week, is part of international efforts to reach a diplomatic solution to the bloody five-year Syrian civil war.

However, the truce does not apply to jihadists - including both ISIS and Al Qaeda's Nusra Front, the latter of which is a considered major rebel force - which has meant clashes have continued particularly in parts of northern Syria.

Israeli Prime Minister Binyamin Netanyahu recently welcomed the ceasefire, but warned Iran was using it as an opportunity to continue building its forces along Syria's southern border with Israel, in preparation for attacks against the Jewish state.