KOLKATA: At least 10 people were killed on Thursday and 150 were feared trapped when a flyover under construction collapsed in Kolkata, two police officials said.

Firefighters and residents were trying with their bare hands to rescue those trapped under the wreckage of the metal-and-cement structure that came down in a teeming commercial district.

A Reuters witness said paramedics at the scene had worked to free people from a minibus taxi that was crushed in the collapse.