British media have named the suspect in Monday's mosque attack as 47-year-old Darren Osborne, a father of four who was living in Cardiff, Wales.

British Security Minister Ben Wallace said authorities were aware of rising far-right activities but were not aware of the suspect prior to the attack near a north London mosque.

The large white van driven by Osborne apparently swerved into a group of Muslims who were leaving evening prayers. At least nine people were injured. Police are treating the incident as a terror attack.

The suspect is being held on suspicion of attempted murder and alleged terror offenses.

British media report that some of Osborne's neighbors have described the father of four as "aggressive" and "strange."

Witnesses said Osborne claimed he wanted to "kill all Muslims" after he drove into a crowd leaving a mosque early Monday morning. 

One man who was receiving first aid at the time of the attack died; it's unclear if his death was a result of the attack or from a previous condition.

Osborne was arrested on suspicion of the commission, preparation or instigation of terrorism including murder and attempted murder.