Two dead in Miami crane collapse

Workers were trying to extend the crane when it gave way

Two people have been killed and at least four others injured in a crane collapse at a high-rise construction site in Miami, Florida.

The crane fell on top of an unoccupied home used as an office at the site of the 50-storey tower on Biscayne Bay.

Correspondents say the construction industry in the US state is unregulated and there is no licensing system.

The collapse comes 10 days after a similar incident in New York in which seven people died.

'Disaster'

Miami police said the injured were in a serious but not critical condition.

Rescue efforts have been hampered as the crane has not yet been stabilised.

Mike Huffstutlear, a dry wall supervisor, told the Miami Herald newspaper: "I watched it go through the roof. It was a disaster."

The Herald said workers were trying to extend the crane when it gave way.

The New York crane crash destroyed a four-storey townhouse and demolished parts of five other buildings.

A woman visiting a friend and six construction workers were killed.

At least 17 were injured in what Mayor Michael Bloomberg called one of the city's worst construction accidents.