A huge explosion in the skies above Houston, Texas, has caused debris to rain down on the city below.

According to people on the ground the 'large explosion' could be heard across the city.

The blast caused windows to rattle several miles away and a bright flash to light up the night sky.

Debris was thrown half a mile away from the epicentre of the explosion, which was a factory on Gessner in the west of the city.

The liquid nitrogen explosion at a manufacturing plant has injured two people, with a further person unaccounted for.

A video of the blast was captured by a camera mounted on the window of a man's house.

Moments after the plume of fire rises into the air, the camera is knocked forward - presumably by the shockwaves.

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(Image: @BattleNub19 /Twitter)

According to KHOU reporter Janel Forte, police were pushing onlookers back from the scene for fear there would be a second explosion.

She wrote: "Police on the scene confirming to me there has been an explosion - right now they are pushing folks back further from the source because there’s fears there may be another explosion."

(Image: ABC 13 Houston)

(Image: ABC 13 Houston)

Early reports suggest the blast came from Watson Valve, a company which produces pressure valves.

The blast was so powerful the doors of a nearby petrol station were blown off their hinges.

(Image: ABC 13 Houston)

(Image: ABC 13 News)

"My whole house shook," one person wrote on Twitter.

Another woman added: "My whole house shook. Scared me to death. I thought it was a bomb or earthquake."

(Image: ABC 13 Houston)

People in the area have reported small follow-up blasts as the fire continues to rage.