Scandinavian Airlines flight SK1530 had to make an emergency landing at Göteborg Landvetter Airport in Sweden, on January 22.
Authorities said the plane, en-route from London Heathrow to Stockholm, Sweden, was diverted due to a bomb threat.
The plane landed safely. All 72 people aboard remained unharmed.
The investigation is underway.

Pegasus Airlines flight PC-824 had to divert and make an emergency landing in Ankara, Turkey, on July 18th.
An Air Canada flight had to divert and make an emergency landing in Calgary, Canada, on April 4th.