Jubilee Line: Fresh disruption after signal failures
Commuters faced severe disruptions on the Jubilee Line after services were hit for a second day running.
A signal failure caused services to be suspended between Willesden Green and London Bridge on Wednesday morning.
The line currently has minor delays. Mayor Boris Johnson said disruptions were "totally unacceptable".
The problems come after hundreds of passengers in five trains were stuck in tunnels for almost an hour on Tuesday evening following a power failure.