Chandigarh, Apr 5 (IANS): At least four labourers were trapped and 36 rescued with minor injuries on Monday when an under-construction portion of a two-storeyed factory in Punjab's Ludhiana town collapsed, police said.
The labourers were rescued in a joint operation carried out by the NDRF and the local administration.
The building is located in a densely populated locality in Mukand Nagar on the Daba Road.
Rescue officials at the site said that efforts were being made to locate the trapped people.
Police said that a major portion of the building collapsed, partially damaging nearby buildings too.
According to the police, most of the injured were admitted to the Civil Hospital here.