Police say they have made two further “significant arrests” overnight in the West Midlands and in the North West after Wednesday’s terror attack on the Houses of Parliament.
A total of nine people are still in custody and one woman has been released on bail.
Acting deputy commissioner Mark Rowley said there was “still no evidence of further threats”, but added that police are still trying to establish whether attacker Khalid Masood worked alone or was “encouraged or supported” by others.
Commander Rowley said the investigation was focused on his “motivation, his preparation and his associates”. He said police want to know if “either he acted totally alone inspired by terrorist propaganda or if others have encouraged and supported or directed him”
Commander Rowley said “looking at his history” Mr Masood was “never part of the mainstream intelligence picture about terrorism”.
But he appealed to people who knew him or about him to come forward. He said:
We remain keen to hear from anyone who knew Khalid Masood well, anybody who understands who his associates were, anyone who can provide information about the places he’d recently visited. There may well be people out there who did have concerns about Masood but weren’t sure or didn’t feel comfortable for whatever reason in passing on that information to us. I know urge anyone with such information to call us