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.
More top news
A father has been found guilty of murdering his three-month-old son by hurling him "vigorously" against a hard surface in a fit of temper.
The self-styled revolutionary has spent the last 23 years in a high security prison for a string of murders and attacks.
Cancer surgeon accused of conducting series of 'completely unnecessary' operations denies giving cancer-phobic GP an unneeded mastectomy.