COPENHAGEN (Reuters) -Denmark has no plans to invoke NATO's Article 4 after drone incursions near civilian and military sites that shut air traffic in the Nordic country earlier this week, Denmark's foreign minister said on Friday.

Denmark was forced to halt flights from Aalborg airport after drone activity was spotted in the country's airspace for the second time this week.

Authorities reported multiple drone sightings overnight on Sept. 26 in northern Germany, which they suspect may be linked to espionage, according to German broadcaster NDR.

DENMARK may initiate Nato’s Article 4 after mysterious drone incursions menaced four airports across the country in one night. It comes just days after Copenhagen Airport – the busiest

The vessel had its tracking equipment deactivated, indicating the vessel wished to avoid detection by Danish authorities.

Amid rising Russian aerial incursions in Europe, drone sightings near a Swedish naval base have set off alarm bells. Drones have led to prolonged shutdowns of airports in Denmark and Norway this week.

NATO Secretary General Mark Rutte has assured Danish Prime Minister Mette Frederiksen of the alliance's solidarity following drone incidents at Danish airports. The situation is being taken "very seriously,