An airport in the Swedish city of Nykoping was partly closed down on Sunday after a suspicious liquid found at a check-in desk prompted fears of a bomb threat, broadcaster STV reported.
An elderly lady was carrying the substance, which contains traces of explosives, according to the report. She was detained by police for questioning at Skavsta airport, located around 100 kilometres south-west of Stockholm.
The baggage hall and arrivals lounge at the airport were closed off around midday. Flights, however, continued to land as normal and authorities said there was no immediate threat.
Bomb disposal experts were testing the suspicious liquid.