Turkey's police say two security forces who died during a raid on Daesh militants in the southern city of Diyarbakir were victims of a bomb attack.

"Two police officers fell as martyrs and five were wounded when a suicide bomber blew himself up... as police entered the hideout," police announced on Tuesday.

Earlier announcements had said the two policemen were killed in clashes with Daesh militants during a police raid on terrorist cells.

The announcement blaming the Daesh Takfiri militant group comes against the backdrop of Ankara’s support for the terrorist group.

Turkey has time and again been blamed for being one of the main supporters of the militant groups operating in Syria, with reports saying that Ankara actively trains and arms the Takfiri militants there and facilitates their safe passage into the Arab country.

Turkish opposition daily Cumhuriyet integrated videos in a June report, implicating Turkish Intelligence Service (MIT) in ensuring safe passage into Syria for Daesh terrorists.

The center-left paper had also posted a video on its website on May 29, purportedly showing trucks belonging to the Turkish intelligence agency carrying weapons to the Takfiri terrorists operating in Syria.

Ankara moved to step up its crackdown on Takfiri Daesh militants after a July 20 bombing in the border town of Suruc left at least 30 people dead and nearly a 100 others wounded.

Turkish security forces' raids on suspected terror cells were intensified after a double bombing killed more than 100 people in Ankara on October 10.

The blasts targeted activists who had gathered for a peace rally organized by leftist and pro-Kurdish opposition groups.

Turkish Prime Minister Ahmet Davutoglu said Daesh may have been behind the attack.