London Victoria station has been evacuated amid a “reported emergency” sparked by a fire alert.
Transport for London said on Twitter no Underground trains were running through the major hub.
Passengers rushed out the station as alarms sounded shortly after 7am on Wednesday morning.
The Victoria line Twitter account, @Victorialine, said: “Victoria station closed. All lines non stopping. Fire alert. Updates to follow.”
A spokeswoman for the London Fire Brigade said firefighters were called to an automatic fire alarm.