Passengers have been evacuated from Tottenham Courtroom Street and the Northern Line is an element suspended amid studies of a hearth.
Firefighters had been known as to studies of smoke coming from a rail on the Underground station on Oxford Road in London.
The London Fireplace Brigade arrived at 8.50am and crews are at present investigating the hearth alert.
Fireplace crews from Soho and Euston fireplace stations are on the scene, together with three fireplace engines.
Passengers have been evacuated from Tottenham Courtroom Street and the Northern Line is an element suspended amid studies of a hearth
