Eleven people have been killed in the Indian capital, Delhi, when a pile of rubble collapsed on labourers at a building site.
Emergency workers said they were trying to reach at least 18 people believed to be buried under the debris.
The workers had been digging out the foundations for a huge commercial complex in the city's Jasola district.
Reports suggest the pile of excavated earth collapsed when a large billboard was put up on an adjacent site.
Officials told Reuters TV they believed 18 people were trapped 50ft (15m) underground.
Construction equipment is being used to clear the debris.