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

Airport Director A K C Nair told PTI that they received information from Kolkata that there is a threat to the AI flight on the Mumbai-Kochi sector on October 25 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 CISF DIG Anand Mohan, who arrived here from Chennai, to review the security at the airport.