A huge fire has erupted on a double-decker bus in London, with flames seen engulfing the vehicle in dramatic footage shared online.

Videos posted to social media show the bus – reportedly near Colney Hatch Lane in the north of the capital – hollowed out by the blaze as other cars file past.

Smoke can be seen pouring out of the top of the vehicle as the fire rips through the rear.

It comes after one of the hottest days on record so far this year, with temperatures peaking in London at 26C at around 3pm, according to the Met Office.

And just yesterday, another inferno broke out at an electrical substation, this time in Maida Vale, in the west of the capital.