Kochi: A threat of a bomb explosion or a possible suicide attack on an Air India (AI) flight from Mumbai sparked an alert here with authorities beefing up security at the international airport.

Airport director A.K.C. Nair said that they received information from Kolkata that there is a threat to the AI flight on the Mumbai-Kochi sector on 25 October and Ahmedabad-Mumbai sector tonight.

“There was a threat of bomb attack or bomb suicide attack," he said. A high-level meeting was convened this morning by Central Industrial Security Force (CISF) DIG Anand Mohan, who arrived here from Chennai, to review the security at the airport.

The director of Airports Authority of India (AAI), Kolkata, had received an anonymous call last night stating that AI flights on the Ahmedabad-Mumbai and Mumbai-Kochi sector will be “sabotaged", airport sources said.

The information had been handed over to police and bureau of civil aviation security and as per their directions security has been tightened at the airport, the sources said. A bomb detection and disposal squad, quick response team, CISF and police are keeping a constant vigil at the airport. Security at the Airport perimeter entrance has also been further tightened.