A police driving school car was involved in a road crash.
The marked Ford Focus was in collision with a Vauxhall Corsa at the junction of the B1012 and A132 in South Woodham Ferrers, shortly after 9.30am today.
An Essex Police spokesman said: "Paramedics were on the scene assessing the condition of the casualties.
"The police vehicle was a driving school car and contained police officers who were on a course."
He said it would be investigated as in the case of any other crash.
The ambulance service has been unable to confirm yet if anyone was injured.