Belgium's defense minister said that more counter-uncrewed aerial systems "are urgently needed" after three drones spied on the Kleine-Brogel base.

Several drones spotted above a Belgian airbase over the weekend were there “to spy” on military fighter jets, the country’s defense minister said Sunday, at a time when European nations are on high alert for airspace intrusions.

Both NATO and the European Union have been on high alert following a string of airspace violations, thought to be from Russia, in recent weeks.View on euronews

Belgium's defense minister confirmed that drones had flown into the area near the Kleine Brogel air base in northeast Belgium in two phases.

Mobile phones detected at sensitive sites, including nuclear plants, NATO headquarters, military bases, finds investigation by European media outlets - Anadolu Ajansı

Analysts say Kleine Brogel is one of a handful of European military bases hosting U.S. tactical weapons, an estimated 10 to 15 B-61 nuclear bombs that can be dropped from nuclear-capable F-16 jets. The base describes itself as a key part of NATO's nuclear deterrence strategy. In the alliance, only the U.S., the U.K. and France have nuclear weapons.

Belgium's defence minister Theo Francken hit back at Russia's nuclear threats with Selena Gomez's 'Calm Down'.

Cruise missile on Brussels? That's a no-brainer...Putin won't do that either,' says Theo Francken - Anadolu Ajansı

An unidentified drone reportedly appeared over the U.S. tactical nuclear weapons storage in Europe. According to CBS and other U.S. media, an unidentified drone appeared over Kleine Brogel Air Base in northeastern Belgium on the night of the 1st and 2nd (local time).