A Singapore Airlines (SIA) aircraft flying from Moscow to Singapore was diverted to Kolkata early today after a reported bomb threat on board.

The airline, which operates Boeing 777-300ER aircraft on the flight, says flight SQ 61 was diverted due to a "security issue" and arrived in Kolkata at about midnight.

Local reports say there was a bomb threat on board the aircraft. An SIA spokesman declines to comment on the reports, adding that the airline does not provide details on safety and security issues.

The aircraft, which had more than 220 passengers on board, is scheduled to depart Kolkata later today, says SIA.

Source: Air Transport Intelligence news