A HORSE box has jack knifed on the A12 today, blocking the one lane.

The vehicle overturned in the northbound carriageway at the junction with the B1029 Dedham Road, at Stratford St Mary a t about 10.10am.

A spokesman for Suffolk police said a horse escaped from the vehicle but was quickly recaptured.

Paramedics were called but no one is believed to have been injured.

The spokesman said lane one was closed to traffic while the vehicle was recovered from the scene.

The road has now reopened.