Four men arrested by counter terrorism officers will continue to be questioned after warrants of further detention have been extended until next week.

Three of the group – aged 18, 25 and 27 – were all arrested at their homes in east London on Wednesday, May 17 on suspicion of being concerned in the commission, preparation or instigation of acts of terrorism under section 41 Terrorism Act 2000.

A 24-year-old was arrested near to his home for the same reason.

The men remain in custody at a south London police station and the warrant extension means they can be held until Wednesday, May 31.

Officers have searched five residential addresses in east London and one business address, also in east London.

These arrests were pre-planned as part of an ongoing investigation by the Met’s Counter Terrorism Command and MI5.

They are not linked to Monday’s terrorist attack in Manchester.