STOCKHOLM, Sweden: Sweden said Thursday (Friday in Manila) it would summon Russian representatives to its foreign ministry over a Wednesday violation of its airspace by four Russian fighter jets. 'There are established procedures for these types of issues and those include summoning a representative of the violating nation to the foreign ministry,' Klara Hook, a press communicator at the Ministry for Foreign Affairs, said. While Russian incursions of the Nordic nation's airspace have happened in the past, Wednesday's event was treated with increased scrutiny given Russia's invasion of Ukraine. According to Sweden's air force, the airspace 'violation' was 'brief,' but Swedish Jas 39 Gripen jets were scrambled to document and photograph the two Su-24 and two Su-27 fighter jets.