Concrete piece thrown at Metropolitan Line Tube train
Submitted by Eamonn Lynch on 5 March, 2012 - 17:58Taken from http://www.bbc.co.uk/news/uk-england-london-17256579
A piece of concrete was thrown at a Metropolitan Line train from a bridge in north-west London, police said.
The fist-sized piece was thrown at the Tube train on 29 February from Highfield Road Bridge as the driver was pulling into Northwood station.
The concrete piece dented the front of the train, but no-one was injured, the British Transport Police (BTP) said.
BTP officers are also investigating the theft of railway cable on Jubilee Line from Queensbury early on Monday.