The M25, a motorway encircling almost all of Greater London, has been closed in Hertfordshire in both directions due to a serious crash around midday on Wednesday (March 27).

In the video shot around 2PM GMT, we can see emergency services working on site, long queues of vehicles and drone footage showing the M25 closed and traffic jams on alternative roads.

The collision involved two cars and a truck. An elderly man and woman were seriously injured and were rushed to hospital by air ambulance following the crash.

The accident occurred at junction 20 near Kings Langley. The highway is closed clockwise between junction 19 and 21.

There are significant delays on the roads and police said that the motorway is likely to be closed for several more hours.

M25 Shut after Major Crash Two seriously Injured, sad news the lady has since died.

The incident happened at around 12.30pm today on the north west london side.

Emergency services, including Hertfordshire Police are working at scene.

Hertfordshire Constabulary have said that an elderly man and woman, who were in the Citroen, have been taken to hospital where there injuries are described as “serious”.

clockwise between the slips serious accident all lanes blocked. Summary, clockwise closed at J19 follow A41 and A405 to rejoin at J21A, anticlockwise down and up closure at J20 causing tailbacks to before J21A, this will be removed when screens are in place in lane 3