POLICE are appealing for information after a Barnsley train hit a concrete block that had been deliberately placed on the tracks.
British Transport Police are investigating and speaking to local schools and colleges to educate of the potential dangers from messing about around the railway.
The 0708 Huddersfield to Sheffield train reported striking a concrete block which was placed on the line above the A635 - Huddersfield Road - it happened on November 21.
PC Stephen Slocombe, of BTP, said: “Although no serious damage was caused to the train and the object was removed by crime scene examiners, it could have been potentially serious if the train had been travelling faster.
“We are sending a direct warning that the consequences of this type of incident could have been much more serious. It was an extremely foolish and dangerous act, which resulted in a lucky escape for passengers and rail staff on board a busy morning train.
“Throwing objects of any kind at fast moving trains is an incredibly irresponsible thing to do and we have stepped up patrols in the area to try to catch those responsible."
Anyone with any information about those responsible, or who may have information they believe could assist police enquiries, should contact British Transport Police on 0800 40 50 40, quoting incident reference B6 of 07/12/2011.
Alternatively, call the independent charity Crimestoppers anonymously on 0800 555 111.