The bag was examined with equipment (Explosive Trace Detection) which showed that the bag may contain some form of explosive material.

Charlotte Ljunggren, who is the airport director, says that it is a routine measure when bags get lost from their owner.

– That's why it's really important when you're at an airport that you keep track of your bags, she says.

A short while later, the danger was over.

Source: sverigesradio.se