According to flight tracker Flightradar24, the Air Indian Express plane took off from the Madurai airport at about 1.54pm local time and was due to land in Singapore at about 8.50pm. It only landed at 10.04pm after a delay of over an hour.

Five Air India flights received security threat messages via social media on Thursday, leading to swift action by the airline. An official confirmed that all procedures were followed, and despite the threats,

London/Mumbai, Oct 17: The Royal Air Force on Thursday scrambled a Typhoon fighter jet to intercept an Air India aircraft that received a bomb threat and the plane later landed safely in London. The bomb threat was received for the Air India plane from Mumbai to London, an airline official said.