Six people were killed in Ireland when a small commuter plane crashed, while trying to land in heavy fog at Cork Airport in the southwest of the country.

The aircraft carrying 12 people, had been travelling from Belfast in Northern Ireland on Thursday. Police said, four of the six survivors had been hospitalized with serious injuries after the plane flipped upon landing.

Aviation officials, at the airport, said the fog was so thick that air traffic controllers in a nearby tower could only hear the crash. They weren't able to see it.