Denmark has temporarily banned civil drone flights in its airspace as it prepares to host a top European Union meeting on defense and the war in Ukraine, and after a surge of suspicious drone activity at several airports and military sites last week.

Denmark has banned all civilian drone flights this week ahead of a European Union summit in Copenhagen, the Danish Minister for Transport said on Sunday. The ministry said the decision was made in order to "simplify security work" for the police, and they could not accept "foreign drones creating uncertainty and disruption".

Denmark's defense ministry reports increased drone activity at military sites amid security concerns. The prohibition on civilian drone flight has been enacted ahead of the EU summit in. NATO and Danish officials heighten vigilance,

Danish defense minister Troels Lund Poulsen said a recent wave of disruptive drone flights near the NATO ally's airports and military installations are a "hybrid attack" and Denmark was considering activating NATO's Article 4 in response.

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 reported the latest in a series of drone sightings on Saturday, with the most recent incident occurring near military installations.

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