In this photo shows a US Air Force F-15 fighter jet takes off from Lakenheath Air Base. File/AFP
A US Air Force fighter plane with one pilot on board crashed into the North Sea on Monday. The status of the pilot wasn't known.
The F-15C Eagle from the 48th Fighter Wing was on a routine training mission from RAF Lakenheath when it crashed at 9:40am local time (4:40am EDT). The cause of the crash wasn't immediately clear.
UK search and rescue authorities are taking part in the search of the crash site.
Lakenheath is a Royal Air Force base that hosts the US Air Force's 48th Fighter Wing, known as the Liberty Wing. The base is about 80 miles (130 kilometres) northeast of London.