Tube trains to the Olympic Park in Stratford, East London were suspended this morning.
Spectators travelling to Stratford on the Central line at around 7am were told all services were terminating at Liverpool Street due to an incident at Leyton.
A defective train westbound was awaiting the arrival of the London Fire Brigade, a train driver said. Station announcers at Bank said there were reports of a fire on board the train.
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A cool, largely clear night across the UK.