BRITISH Transport Police are hunting vandals who put lives at risk by dropping concrete onto a passing train at Hartford.
The incident happened at around 7pm on Monday (March 30), as the train passed through Hartford on its way to Liverpool Lime Street.
Staff on board noticed electrical problems shortly before the train suffered a total power failure at Acton Bridge.
Examination of the train revealed the pantagraph, which converts power for the train from the overhead cables, had been destroyed.
Concrete debris was also found on the roof of the train and the remains of a paving slab.
BTP Sgt Sean Morgan said: “The damage caused to the train is unacceptable and the resulting power failure caused major upheaval for the passengers on board and the network in general.
“However it is only through good fortune that we are not now dealing with a much more serious incident.
“I cannot over estimate the danger posed by people who get some sort of kick out of throwing things at trains.”
Officers are appealing for anyone who was in the Hodge Lane are around to the time and saw anything suspicious to call the British Transport Police on freephone 0800 40 50 40 or Crimestoppers anonymously on 0800 555 111.