Kolkata:
Flight operations were hit due to fog at the international airport here with 50 of them affected since last night.
Airport sources said today that air traffic was stalled from 11.30 p.m. last night to 8.50 a.m. this morning.
An Emirates flight was the first to land at the airport at 8.50 a.m.
Thirty outgoing flights could not take off since last night due to fog while 20 incoming flights could not land.
Visibility till 8.50 a.m. was 50 metres.