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Pierre Vogel, a 38-year-old who converted to Islam in 2001, is considered one of the country’s most prominent Islamist preachers. The Salafist preacher, who insists on being called Abu Hamza, is a former professional boxer with an undefeated record.

CEN German Islamists trade punches in a row over their commitment to radicalisation

However, his latest fight has taken place outside the ring, when he and Sabri ben-Abda came to blows in a car. The fight began after ben-Abda allegedly said he was a ‘true devotee’ and his former best friend Vogel was no longer radical enough. In the aftermath a violent scuffle broke out between the pair, according to reports.

CEN Pierre Vogel converted to Islam in 2001 and goes by the name 'Abu Hamza'

While ben-Abda filed a report for GBH and vandalism, Vogel vehemently denied attacking the fellow extremist. Vogel once appeared in a video with a young girl known as ’Safia S’, who was recently jailed for six years after stabbing a policeman in Hanover. She had been stopped from travelling to Syria with the intention of becoming a martyr.

Jihadi Brides from Britain Thu, September 22, 2016 A photo report on the British woman who left the UK to fly to Syria, and joined the Islamic State. Play slideshow Tim Stewart News Limited 1 of 10 Sally Jones, who calls herself Sakinah Hussain. She is married to British jihadist fighter in Syria Junaid Hussain. In 2013 she left the UK to join the Islamic State.