KYIV/KHARKIV—Russian forces pounded Ukraine’s second-largest city Kharkiv and the surrounding countryside with rockets, killing at least 15 people, in what Kyiv called a bid to force it to pull resources from the main battlefield to protect civilians from attack.
Inside Russia, a fire tore through an oil refinery just 8 km (5 miles) from the Ukrainian border, after what the refinery described as a cross border attack by two drones.
