A �1,000 reward has been offered for information leading to the conviction of vandals who have targeted trains travelling through the Barking area.

Around 10 c2c trains have been damaged since the beginning of the month with most incidents taking place during last weekend, November 13 and 14.

British Transport Police believe the damage is being caused by objects, possibly stones, being thrown from the St Awdry Road footbridge and the Kennedy Road footbridge, both in Barking.

PC Scott Darrah, investigating officer, said: “Incidents like these are rare and although no one has been injured, throwing any object at a fast moving train is an extremely dangerous thing to do and potentially endangers the safety of passengers on-board.

“I would encourage anyone with information to come forward and help us with our enquiry into what are a series of very serious incidents that have caused substantial damage”

BTP officers are working closely with colleagues from train company c2c, which has offered the cash reward to anyone who can help police identify those responsible.

Ian Palmer c2c’s security manager said: “We urge anyone with information to make contact with the British Transport Police or Crimestoppers. Stone throwing has caused disruption to our customers’ journeys and substantial damage to our trains - moreover it could potentially injure those on-board.”

If you have any information regarding this incident, you can contact British Transport Police anonymously on 0800 40 50 40 quoting number B12 of 12/11/2010.

Information can also be passed anonymously to Crimestoppers on 0800 555 111.