Major London underground hub reopens after false alarm - city authorities

London's Kings Cross St Pancras underground station has reopened after a fire alert proved to be a false alarm, a spokeswoman for the city's transport authorities said on Tuesday."We believe that it was a hoax call at one of the fire points," a Transport for London spokeswoman said.A spokesman for London's fire brigade said firefighters had established that there was no fire within 10 minutes of arriving at 2144 GMT, and that it had been a false alarm.