Swedish and Finnish fighter jets were scrambled to intercept and identify Russian military aircraft in international airspace over the Gulf of Finland on Thursday, the Finnish Air Force. European countries have been on high alert for any Russian interference, with fears that Moscow could target Kyiv's Western backers as the Kremlin's invasion of Ukraine drags on into its fifth year. Key points and original sources are listed below.

• Swedish and Finnish fighter jets were scrambled to intercept and identify Russian military aircraft in international airspace over the Gulf of Finland on Thursday, the Finnish Air Force.S1

• European countries have been on high alert for any Russian interference, with fears that Moscow could target Kyiv's Western backers as the Kremlin's invasion of Ukraine drags on into its fifth year.S2