Satellite imagery and verified videos show Ukraine has repeatedly struck key Russian oil export infrastructure near the Baltic Sea in the past week, leaving some facilities burning for several days. BBC Verify has confirmed at least three oil sites in Russia's Leningrad region were attacked near the city of St Petersburg, about 500 miles (800km) north of the Ukrainian border, since 23 March. This includes several separate strikes on the key Baltic Sea ports of Ust-Luga and Primorsk as well as