Along the Syrian-Turkish border
Along the Syrian-Turkish borderReuters

Turkey on Thursday rejected as "black propaganda" claims that Islamic State (ISIS) jihadists crossed from Turkey to carry out deadly bombings and raids on the Syrian town of Kobane, AFP reports.

Dozens of civilians and fighters on both sides were killed in a day of violence as ISIS launched car bomb attacks on the Turkish border crossing adjacent to Kobane and battled Kurdish fighters in the city.

Turkish officials said four victims had died in Turkish hospitals while 135 injured received treatment on the Turkish side of the border.

Claims circulating on the Internet suggested several cars loaded with ISIS members passed through the Mursitpinar border crossing in Turkey to make their way into Kobane.

"The claim that Daesh militants passed through the Turkish border is entirely a lie and part of a black propaganda," Deputy Prime Minister Numan Kurtulmus said in a message on Twitter, using an Arabic term for ISIS.

The governor's office in the border region of Sanliurfa said its information "proves" ISIS members infiltrated Kobane from Jarablus in Syria.

"Turkish armed forces are monitoring our borders 24 hours as part of security measures," it added, according to AFP.

The Turkish government said video footage taken from Turkish border security units and broadcast by the state-run Anatolia news agency showed a bomb-laden car did not pass through the Turkish border crossing.

Kurdish activists, however, accused Turkey on social media of assisting the IS group, with the hashtag #TerroristTurkey becoming a trending topic on Twitter.

The accusations come amid growing tensions between Syrian Kurds and Turkey, the report noted.

Turkey says Syrian Kurdish forces who recently made gains in Syria against ISIS are linked to the Kurdistan Workers' Party (PKK), which for decades has waged a deadly insurgency inside Turkey.

Western states have repeatedly accused Turkey of not doing enough to halt the flow of jihadists in both directions across its border with Syria.

Ankara was sharply criticized over its failure to stop three British teenage girls who crossed the Turkey-Syria border to join ISIS in February.

The three teens, Shamima Begum, 15, Amira Abase, also 15, and Kadiza Sultana, 16, are now feared to have reached the conflict zone and are believed to be staying at a house in the city of Raqqa, a stronghold of ISIS.

Turkey fiercely rejects the accusations, saying it is making every effort to secure a long border and in turn has accused the West of not playing its part to shoulder the burden of hosting refugees from Syria.

Two months ago, Turkey’s Foreign Minister appealed for more help in cracking down on foreign fighters flooding to join terrorists in Iraq and Syria.

AFP contributed to this report.