Bangalore : Three persons were killed while three were injured after a three-storey under-construction marriage hall collapsed at Kengeri here on Monday morning. The dead were construction workers.

The injured were hospitalised. Police and fire officials did not rule out the possibility of more persons getting trapped under the debris.

About 10-15 construction workers were believed to be working at the site when the building caved in. Rescue operations were on till last reports came in.