Ankara, Aug 18 (IANS): The Islamic State militant group posted a video in Turkish on Tuesday threatening Ankara and President Recep Tayyip Erdogan by calling on Muslim citizens to join the fight and conquer the capital.

The video depicts a Turkish terrorists seated between two armed militants, calling on Turkish Muslims to rebel against the government in Ankara, reports Efe.

The speaker accuses Erdogan, the Islamist president, of rebelling against God and having opened Turkish soil to "cross worshippers", which is to say the US, and he urged Muslims in the country to rebel against the ruling regime and to also conquer the city of Istanbul.

He insisted that Ankara, in addition to collaborating with Washington, is working with atheists and the Kurdistan Workers' Party, which he said would ultimately result in eastern Turkey be taken over by the PKK, and the western part by the US.

The Turkish army bombed IS targets in Syria for the first time in late July, in response to an attack in the border area of Suruc attack which was attributed to IS, although the armed group never claimed responsibility.

Soon thereafter, Ankara opened the Incirlik air base, in the southern city Adana, to the US-led international coalition fighting the IS.