An Air India flight had to make an emergency landing following reports of a bomb threat one day after hundreds died in a fatal crash involving one of the airline's planes.

All 156 passengers on flight AI 379 had been escorted from the plane, in line with emergency plans, an Airports of Thailand official said. The aircraft took off from Phuket airport bound for the Indian capital at 9.

A Delhi-bound IndiGo flight with 157 passengers on board made an emergency landing in Nagpur on Tuesday after receiving a bomb threat, the Cochin International Airport Ltd (CIAL) said. The flight, which originated from Muscat, was on its way to Delhi after its scheduled stop in Kochi.