The defence ministry in one NATO’s founding members said fighter jets had been scrambled to counter the incursion on Friday, Ritzau news agency reported.
“Completely unacceptable that Russian planes violate Danish airspace, even twice in one day,” Foreign Minister Jeppe Kofod said in a post to Twitter.
Kofod added that the repeat violation made it look like a “deliberate action”.
“We are still examining the details, but I have already taken the initiative to summon the Russian ambassador for a talk at the Ministry of
Foreign Affairs,” the foreign minister said.
The violations had occurred over the Danish island of Bornholm in the Baltic Sea, south of Sweden.
“It is very rare that we see this type of violation of Danish airspace, so two in the same day must be deemed to be serious,” Defence Minister Trine Bramsen told Ritzau.
According to the agency, Russia has repeatedly flown over Danish airspace and in August 2020, a Russian B52 bomber also flew over Bornholm.