New York City commuters face delays after an early morning fire near Penn Station that officials are calling “suspicious”.
The blaze broke out at 2.22am (7.22am UK time) in an underground construction site at 34th Street and Eighth Avenue. It was under control three hours later.
FDNY Chief James Leonard said about 155 firefighters braved “tough conditions” and that two suffered minor injuries.
“The fire is suspicious,” Chief Leonard said, adding that an investigation is under way.
Trains on the A, E and C subway lines have resumed service but residual delays remain.
The Long Island railroad service could also face some disruption due to a power outage after the blaze.
In Washington, DC, one person died and dozens were injured at a busy subway station after smoke forced the evacuation of passengers during rush hour.