50 Cent has been accused of trying to kill his son and ex-girlfriend in an arson attack, but the rap star denies the claims.

Shaniqua Tompkins - mother of the rapper’s 10-year-old son Marquise - claims a Molotov cocktail started the fire which destroyed the star’s multi-million dollar mansion in Dix Hills, New York State while she, the child and four others were inside on Friday.

They were all treated in hospital for minor injuries.

She said: "He tried to kill me and his own child. I know this came from 50 Cent. I know he did it."

The blaze comes just days after the 32-year-old rapper – real name Curtis Jackson – tried to get his ex-lover evicted from the house following a heated argument.

The In Da Club star, who was filming Streets of Blood in Louisiana when the blaze broke out, denies starting the fire.

His attorney, Brett Kimmel, said: "Any suggestion that Mr Jackson had anything whatsoever to do with the fire at his home is outrageous and offensive."

Fire officials confirmed the blaze was "definitely suspicious" and have launched an investigation.