Bronx Boy 'Thrown Off Five-Storey Building'

A nine-year-old New York City boy is fighting for his life after he was allegedly thrown off the roof of a five-storey building by his teenage neighbour.

Police say Casmine Aska, 17, dragged the young boy out of his Bronx apartment and up the stairs before hurling him off the top of the building.

Neighbours who discovered the victim lying on the pavement identified him as Freddy Martin, the New York Daily News reported.

He is said to be in critical condition at Columbia Presbyterian Hospital.

Neighbours told the Daily News that Freddy was heard screaming for his mother as he lay helpless on the concrete sidewalk after falling approximately 60 feet (18 metres).

Law enforcement sources told the newspaper that before losing consciousness Freddy informed police and medical workers that Aska had pushed him from the roof.

Aska was later arrested as he tried to walk out of the building with his mother and brother. Police have charged him with attempted murder.

Sources told the Daily News that the teenager gave "several versions" of what happened while being questioned by investigators, including the claim that "Freddy tried to grab him and in doing so fell from the roof".