FILE - Russia's Leonid Volkov, Chief of staff for the 2018 presidential election for Alexei Navalny's campaign, looks on, at the European Parliament in Strasbourg, eastern France, Dec. 15, 2021. Associates of the late opposition leader Alexei Navalny reported on Tuesday night that the politician’s close ally and top strategist was attacked near his home in Lithuania. Navalny’s spokesman Kira Yarmysh said the assailant smashed a window of Leonid Volkov’s car, sprayed tear gas into his eyes and started hitting him with a hammer. (AP Photo/Jean-Francois Badias, File)
A police car is seen near the house of Leonid Volkov, a close associate of the late Russian opposition leader Alexei Navalny, in Vilnius, Lithuania, Wednesday, March 13, 2024. Volkov on Wednesday blamed the government of Russian President Vladimir Putin after he was attacked with a hammer and tear gas outside his home near the Lithuanian capital, where he lives in exile, the late Navalny's anti-corruption foundation said.(AP Photo/Mindaugas Kulbis)
Police officers inspect the territory near the house of Leonid Volkov, a close associate of the late Russian opposition leader Alexei Navalny, in Vilnius, Lithuania, Wednesday, March 13, 2024. Volkov on Wednesday blamed the government of Russian President Vladimir Putin after he was attacked with a hammer and tear gas outside his home near the Lithuanian capital, where he lives in exile, the late Navalny's anti-corruption foundation said.(AP Photo/Mindaugas Kulbis)
This image provided by Navalny Team on its Telegram channel shows the injuries sustained by Leonid Volkov, an ally and top strategist of the late opposition leader Alexei Navalny, after he was attacked near his home in Vilnius, Lithuania, on March 12, 2024. (Navalny Team via AP)
Police officers patrol near the house of Leonid Volkov, a close associate of the late Russian opposition leader Alexei Navalny, in Vilnius, Lithuania, Wednesday, March 13, 2024. Volkov on Wednesday blamed the government of Russian President Vladimir Putin after he was attacked with a hammer and tear gas outside his home near the Lithuanian capital, where he lives in exile, the late Navalny's anti-corruption foundation said.(AP Photo/Mindaugas Kulbis)
Police officers patrol the area near the house of Leonid Volkov, a close associate of the late Russian opposition leader Alexei Navalny, in Vilnius, Lithuania, Wednesday, March 13, 2024. Volkov on Wednesday blamed the government of Russian President Vladimir Putin after he was attacked with a hammer and tear gas outside his home near the Lithuanian capital, where he lives in exile, the late Navalny's anti-corruption foundation said.(AP Photo/Mindaugas Kulbis)
Police officers patrol the area near the house of Leonid Volkov, a close associate of the late Russian opposition leader Alexei Navalny, in Vilnius, Lithuania, Wednesday, March 13, 2024. Volkov on Wednesday blamed the government of Russian President Vladimir Putin after he was attacked with a hammer and tear gas outside his home near the Lithuanian capital, where he lives in exile, the late Navalny's anti-corruption foundation said.(AP Photo/Mindaugas Kulbis)
Police officers inspect the territory near the house of Leonid Volkov, a close associate of the late Russian opposition leader Alexei Navalny, in Vilnius, Lithuania, Wednesday, March 13, 2024. Volkov on Wednesday blamed the government of Russian President Vladimir Putin after he was attacked with a hammer and tear gas outside his home near the Lithuanian capital, where he lives in exile, the late Navalny's anti-corruption foundation said.(AP Photo/Mindaugas Kulbis)
Police officers patrol near the house of Leonid Volkov, a close associate of the late Russian opposition leader Alexei Navalny, in Vilnius, Lithuania, Wednesday, March 13, 2024. Volkov on Wednesday blamed the government of Russian President Vladimir Putin after he was attacked with a hammer and tear gas outside his home near the Lithuanian capital, where he lives in exile, the late Navalny's anti-corruption foundation said. (AP Photo/Mindaugas Kulbis)
Police officers patrol near the house of Leonid Volkov, a close associate of the late Russian opposition leader Alexei Navalny, in Vilnius, Lithuania, Wednesday, March 13, 2024. Volkov on Wednesday blamed the government of Russian President Vladimir Putin after he was attacked with a hammer and tear gas outside his home near the Lithuanian capital, where he lives in exile, the late Navalny's anti-corruption foundation said.(AP Photo/Mindaugas Kulbis)