The UK's terror threat level is "absolutely" under review following US and Israel strikes on Iran, the defence secretary told Sky News.

Defence Secretary John Healey has revealed details of the UK's operations in the Middle East - including taking down Iranian drones - after the US and Israel targeted Iran.

Joint US-Israel strikes on Iran - and a subsequent retaliation from Tehran - has caused widespread disruption on air travel.

A man has been arrested on suspicion of murder after a fatal stabbing at a shopping centre, police have said.