At least three people were killed and over 10 injured when an four-storey building under construction collapsed in northeast Delhi Saturday morning.

The building, being constructed in Brahmapuri area of Seemapuri, collapsed at around 7.30 a.m.

About seven fire tenders rescued more than 10 labourers from the debris. They were rushed to Guru Tegh Bahadur Hospital.

Police said many more labourers could be trapped under the debris.

'We don't know what caused the building collapse but rescue work is on,' said a police official.