The airport, located outside Gothenburg, received a bomb threat on Thursday morning. As a result, police were placed in high visibility areas, police spokesperson Peter Adlersson told Expressen.
A couple of "suspicious" plastic bags were later found in the domestic hall. The hall was subsequently cordoned off, Adlersson said.
"We have found a suspicious object at Landvetter and received a direct threat to our airport...right now it's a police operation and all other information is through the police," said Swedavia press officer Charlotte Periasamy.
Earlier reports on social media stated that an explosion had occurred at the airport.
However, according to Forex Live, it seems the reported blast was a controlled explosion of the two suspicious bags, conducted by authorities.