At least one person has been injured after a pedestrian bridge collapsed on the M20 in Kent.
It happened between junctions 3 and 4, where the road has been closed in both directions.
Kalpana Fitzpatrick, who had been driving on the motorway, told Sky News: What we can see is two trucks squashed by this bridge and emergency services are at the scene. From what I can tell they are treating one person.
There are quite a lot of people just walking around the motorway not knowing what is going on.
The side I’m on, the bridge is still hanging, and obviously the traffic has been stopped. It’s quite shocking.
The scene after the bridge collapsed on the M20 between junction 3 and 4. Video footage from the scene shows the top of a lorry’s trailer sheared off, and debris littering the carriageway.
A fire engine has managed to get close to the scene, while a helicopter has been hovering overhead.
Highways England spoke of a “vehicle striking a bridge”, and said the road was expected to be closed for an extended period.
A message on its website said: “All emergency services are en-route or in attendance.
“Road users are being strongly urged to plan ahead and use alternative routes.”
South East Coast Ambulance Service tweeted: “On scene of an RTC on the M20 j4 following bridge collapse. Currently dealing with one patient.”
Kent Police said the injuries were not thought to be life-threatening.
The force said in a statement: “(Police were) called at 12.07pm on Saturday August 27 to a report of a bridge collapse between junction 4 and junction 3 on the M20 London-bound.
“It is believed a lorry collided with a pedestrian bridge which has collapsed onto the carriageway below.
The wreckage of a motorcycle can be seen beneath the bridge. Pic: Grant Hearn “Officers are in attendance along with Kent Fire and Rescue Service and South East Coast Ambulance Service.
“No people are believed to be trapped in the debris, however one person is believed to have suffered injuries, not reported to be life-threatening at this time.
“Police are treating this as a major incident and the M20 has been closed in both directions to allow this incident to be dealt with. Traffic will be heavier than usual.”