Japan rocket explodes in flames seconds after liftoff

A second rocket developed by Japanese start-up Interstellar Technologies has failed at lift off, with the 10-metre rocket exploding in a fireball.

Japan's privately developed rocket, MOMO-2, has exploded in flames after it failed to lift-off. (AAP)

A rocket developed by a Japanese start-up company has burst into flames seconds after a failed lift-off in northern Japan.

The MOMO-2 rocket, developed by Interstellar Technologies, was launched in Taiki town on Hokkaido, Japan's northernmost main island. It was supposed to reach as high as 100 kilometres into space.

Television footage on Saturday showed the 10-metre pencil rocket lifted only slightly from its launch pad before dropping to the ground, disappearing in a fireball.

The rocket was only metres in the air when it caught fire and crashed back to earth. Source: AAP

Footage on NHK public television showed a charred rocket lying on the ground.

The incident caused no injuries.

Interstellar Technologies president Takahiro Inagawa said he believes the rocket suffered a glitch in its main engine.

He apologised for the failure, and said his team would collect the debris to analyse the problem and improve the rocket.

Saturday's failure was the second after the rocket's first launch last July.

The project was started in 2005 by maverick entrepreneur Takafumi Horie, founder of internet service provider Livedoor, who was joined by science journalists and other space fans in an effort to develop a small, lightweight and low-cost rocket to send information satellites into space.

MOMO 2 explodes seconds after liftoff at Taiki, Hokkaido. Source: AAP