IG Sirte is now the capital of Islamic State in Libya

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The evil militants fear a sniper is picking off fighters in the group's de facto North African capital of Sirte after three ISIS commanders were reportedly shot dead from long range in recent weeks. The sharp shooter is said to have perfected his skills during the 2011 uprising against dictator Colonel Gaddafi.

Senior ISIS terror chief Abdullah Hamad Al-Ansari has been named as the latest casualty after he was attacked on January 23 as he left a city centre mosque. Hamad Abdel Hady, an official in the depraved cult's Sharia court, was also taken out by a sniper's bullet earlier this month.

The fight against ISIS Fri, November 18, 2016 The battle against ISIS militants (also abbreviated as Daesh, ISIL, IS and Islamic State) continues in the Middle East. Play slideshow Getty 1 of 183 Forces battle against ISIS

Speculation about the culprit's identity has led to reports that the shooter hails from the neighbouring city of Misrata, which fell under ISIS control last year. Separate rumours appeared to point the finger at American or European special forces operatives who could be taking out high-profile jihadi targets in Libya. A crack team of British Special Forces are in Libya preparing the ground for up to 1,000 British troops who have been drafted in to tackle ISIS.

IG Sirte sits on Libya's coastline

IG ISIS hand out propaganda leaflets in Sirte traffic

IG An ISIS billboard in Sirte warns women to wear a burqa