Updated

LONDON -- A small train collided with a sewage tanker truck in rural England on Tuesday, injuring 18 people, two of them critically, British transportation officials said.

The rear of the two-car train derailed, but stayed upright after the crash near the town of Sudbury, in the county of Suffolk. The area is about 60 miles (95 kilometers) northeast of London.

A Network Rail statement said the tanker was hit by the train at a level crossing, and the train's driver was among the badly injured, according to initial reports.

British Transport Police said in a statement that of the 18 people hurt, two had life-threatening injuries, another two were seriously injured and there were 14 "walking wounded."

Network Rail said the level crossing has gates and a telephone, and that drivers are supposed to notify signalers before proceeding across. The railway said no phone call was received by the controller.