One firearms officer is believed to have suffered a broken wrist while the suspect in Edmonton was being detained, police said.
Police added that a stun gun was discharged during the operation.
More top news
A mild start to the Christmas week across many parts of the UK, rain spreading southwards over the next few days.
A multi-feature 'drinking jacket' is to go into production after its crowdfunding project raised almost 10 times its target amount.
Ukip leader fails to see the humour in a phone app created by teenagers which pokes fun at him and his party's views on immigrants.