Air accident investigators have begun to look into what caused the crash of a UK RAF Tornado F3 jet that killed two crew members on 2 July.

The plane came down north-west of Glasgow, Scotland, during a routine training flight from the RAF Leuchars base in Fife.

RAF Leuchars is home to two Tornado Squadrons; 111 Squadron and 43 Squadron.

There will be a service inquiry held by the RAF, according to a Ministry of Defence spokesperson.