Extremist supporters of Islamic State handed out leaflets promoting the establishment of a "Kahlifah" and calling on Muslims to "obey the Kahleef", on the streets central London today, witnesses have reported.

One of the leaflets given out by the supporters today calls for Muslims to "spread the Khalifah [Caliphate] across the world" in forming a new Islamic State governed by an Imam executing Islamic Sharia law.

Asma Al-Kufaishi, British-Iraqi university student, tweeted images of an Islamist Group canvassing around the busy shopping area of Oxford Circus, with posters showing the black flags associated with the extreme fundamentalist militant group Islamic State, formerly known as ISIS, which has declared a "Caliphate" across parts of Syria and Iraq.

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