More mystery drones that caused major airport closures spotted above Europe

Suspicious drones were reportedly spotted near a naval base in Sweden just days after major airports in the region had to close.

Drone sightings in Denmark have caused concern after the country’s busiest airport was forced to shut on Monday, wreaking havoc on travel as planes were grounded. More drones were reported over the Aalborg, Sonderborg and Esbjerg airports and near the Skrydstrup airbase.

At least two more large drones were seen flying over the Karlskrona archipelago in southern Sweden overnight.

The sightings were made around six miles from the Karlskrona naval base, it is understood.

The sightings are thought to be related to the incident in Denmark, the police revealed.

Police were alerted near the Möcklösundsbron bridge, where they saw one of the drones in action.

Mattias Lundgren, an investigation lead at the Karlskrona police, told Swedish outlet SVT: ‘It is a larger variant, similar to the one that was over Denmark and Skåne.’

Locals in Sturko and Tjurko reported seeing two drones, which flashed red and green, the police command centre said.

Detectives are not yet sure what the drones are, and no aircraft has been seized.

Mr Lundgren said: ‘It is unclear what it is, but we have filed a report of a violation of the Aviation Act.’

He said they reacted quickly to the sighting because it ‘reminds us’ of the events in Denmark and Norway.

In neighbouring Denmark, a ‘capable actor’ is suspected of deploying a fleet of drones to Copenhagen Airport to ‘show off.’

Jens Jespersen, police inspector in Copenhagen Police, said: ‘There is nothing to suggest that they intended to harm anyone. They intended to show off.

‘It is an actor who has the capabilities, the will and the tools to show off in this way.’

Drones were also spotted hovering near the Oslo airport, but it is not known whether the incidents were connected.

Karlskrona, where the latest drones were seen, is around 150 miles east of Copenhagen Airport.

The aviation industry is on high alert across Europe after a cyber attack disrupted operations at Heathrow, Brussels and Berlin airports last weekend.

Got a story? Get in touch with our news team by emailing us at webnews@metro.co.uk. Or you can submit your videos and pictures here.

For more stories like this, check our news page.

Follow Metro.co.uk on Twitter and Facebook for the latest news updates. You can now also get Metro.co.uk articles sent straight to your device. Sign up for our daily push alerts here.