LVIV: Branches of at least three Russian banks have been attacked during a spate of weekend violence across Ukraine that coincided with the second anniversary of the ouster of Kiev’s Moscow-backed leadership. The latest incidents occurred overnight Sunday in Lviv — a nationalist bastion in the west of the former Soviet republic — where unknown assailants torched the central city office of Russia’s top bank Sberbank. Another branch of the Russian state-held lender had its windows smashed. Police said the office of VTB Bank was also damaged.