Ambala (Haryana), Oct 30 - At least 10 people were trapped when fire broke out in a commercial building in this Haryana city Friday afternoon, an official said.

Fire officials said fire brigade teams had rushed to the VR Tower in Ambala, about 45 km from Chandigarh, and were trying to control the fire.

"There is a lot of smoke on one floor of the building. Some people are trapped and are being rescued," a fire official said.

The fire is believed to have been caused by an explosion in an air-conditioning unit. (IANS)