A van rammed into pedestrians near the Finsbury Park mosque early Monday, killing one man and injuring eight other people in what Prime Minister Theresa May said was “a potential terrorist attack”.

The 48-year-old driver of the van was detained by members of the public and then arrested by police.

Muslim leaders said worshippers were specifically targeted as they were leaving after the ‘Taraweeh’ prayers in north London, shortly after midnight and linked the incident to a recent rise in anti-Muslim hate crime.

London Mayor Sadiq Khan said it was a “horrific terrorist attack,” calling it “deliberate” and aimed at “innocent Londoners, many of whom were finishing prayers during the holy month of Ramazan”.

May was due to hold an emergency ministerial meeting later on Monday to discuss the attack.