MOTORISTS were warned of 'lengthy delays' at a busy roundabout due to a collision.

The crash, thought to have involved three vehicles, happened at the Milton Interchange near Didcot this morning and caused tailbacks on the A34.

All congestion has since cleared.

Oxfordshire County council tweeted shortly before 8.30am this morning, reporting delays 'on all approaches.'

It is not yet clear if anyone has been injured.

At the height of disruption, there were two miles of queues on the northbound A34 and six miles on the southbound road.

There was also a nearby collision involving two cars on the northbound A34 this morning, thought to have happened at about 8am. 

One lane was closed just before the Milton Interchange.