NEW DELHI - AN AIR India flight to London was forced to turn back and make an emergency landing in New Delhi on Saturday 30 minutes after take-off, an airport spokesman said.

'There was a technical problem. The lights of a smoke indicator went off,' said Mr Arun Arora, a spokesman for New Delhi's international airport.

All 115 passengers and 15 crew members were safe, airline officials said.

It was the second such incident this week. On Thursday, an aircraft of no-frills airline Go Air made an emergency landing after a problem was detected with its nose wheel. -- AFP