- Tyne Tees
The boy who died after an accident at Beamish Open Air Museum has been named as Karl Doran.
Karl, seven, died after an incident with steam traction engine and a trailer.
The engine was being driven by Karl's father Phillip, 41.
Karl lived with his parents in Darlington.
A post mortem examination carried out last night showed that he died from head injuries.
DCI Victoria Fuller, who is leading the investigation, said: "We are treating this as a tragic incident and are working with our colleagues at the Health and Safety Executive to establish the exact circumstances.
"We have already spoken to a number of witnesses but need to speak to some key people who may have been on a bus or tran which passed the traction engine around the time of the incident which occurred at around 3pm [on Sunday July 22]."
Karl and his father were both steam enthusiasts and were frequent volunteers at Beamish.
Richard Evans, museum director, said: "We continue to support the joint investigation and offer our deep condolences to Karl's father."
Police confirm the engine involved in an incident in which a boy died at Beamish was being driven by his father.
A seven-year-old boy was killed in the incident with a steam traction engine and trailer at the Beamish Museum.