The crash occurred just after 8:50am on the anticlockwise carriageway between junctions 29 and 30, near South Ockendon in Essex.
An Essex Police spokesperson said:
“We are at the scene of a collision on the M25 between junctions 29 and 30 on the anti-clockwise carriageway. It was reported three vehicles were involved in a collision at about 8.50am, leaving one person with injuries and another person trapped in their vehicle.”
“Paramedics treated a woman at the scene and firefighters rescued another person from a vehicle. The road remains partially blocked while emergency services make the area safe.”
The East of England Ambulance Service confirmed it sent three ambulances and an ambulance officer vehicle to the incident.
A spokesperson added:
“Three patients were transported to Basildon University Hospital for further assessment and treatment.”
The crash caused significant disruption during the morning rush hour, with severe delays and congestion reported in the area. Traffic diversions were put in place while emergency services worked to clear the scene.
All closures have since been lifted and traffic has now returned to normal.
Drivers are still being urged to check traffic updates before setting out on their journeys and to allow extra travel time during peak hours.
