Five building labourers have been killed and 12 injured in an accident at a construction site at Dubai airport.
Construction workers ran from the scene of the accident
A reinforcement cage that was holding up a new wall that was being built collapsed, bringing down the wall and trapping workers under it.
The accident happened during the building of a new third terminal, civil aviation authorities said.
The airport - one of the world's busiest and fastest-growing - is being expanded at a cost of $4.1bn.
"The wall fell down, and we all ran to help, but there wasn't anything we could do,"one worker, Daljinder Singh, told the Associated Press news agency.
The injured workers were taken to two hospitals.
But there has been no disruption to flights.
The accident happened at 1100 (0700 GMT) according to building workers quoted by AP. They said about 150 workers were at the site at the time.
Most construction workers in the UAE come from South Asia, although the airport authorities have not confirmed the nationalities of those involved in the accident.
The new terminal, to be used by Emirates airline, is due to open for passengers in 2006.
It has been designed by France's Aeroports de Paris (ADP) and will be in the shape of a giant plane wing almost 1km long (1,100yds).
An ADP official in Dubai said the firm was not involved in the construction of the terminal.
The French company also operates Charles de Gaulle airport in Paris, where a roof at a new terminal collapsed in May, killing four people.