At least three people were killed in a Russian bomb attack on UkraineB次元官网网址檚 second city, Kharkiv, on Saturday afternoon, Ukrainian President Volodymyr Zelenskyy said.

Another 19 people were wounded in the attack, in which a guided aerial bomb hit a residential building, according to Zelenskyy.

Russia has also continued to target UkraineB次元官网网址檚 energy infrastructure. Russia launched a new barrage of missiles and drones in an overnight attack on Ukraine, officials in Kyiv said Saturday, damaging energy facilities in the southeast and west and injuring at least two workers.

Ukraine is struggling with a new wave of rolling blackouts after relentless Russian attacks on energy infrastructure that started three months ago took out half the countryB次元官网网址檚 power generation capacity. In its eighth major attack on energy facilities overnight, Russia fired 16 missiles and 13 Shahed drones, the Ukrainian air force said.

UkraineB次元官网网址檚 air defenses intercepted 12 of the 16 missiles and all 13 drones launched by Russia, the air force said.

State-owned power grid operator Ukrenergo said the strikes damaged equipment at facilities in southeastern Zaporizhzhia and the western Lviv region.

Two energy workers were injured in Zaporizhzhia when a fire broke out at an energy facility, according to regional Gov. Ivan Fedorov.

With no major changes reported along the 1,000-kilometer (600-mile) front line, where a recent push by the KremlinB次元官网网址檚 forces in eastern and northeastern Ukraine has made only incremental gains, both sides have taken aim at infrastructure targets, seeking to curb each otherB次元官网网址檚 ability to fight in a war that is now in its third year.

MoscowB次元官网网址檚 overnight attack on Zaporizhzhia and Lviv follows Ukrainian military strikes on three oil refineries in southern Russia overnight into Friday.

Air defenses destroyed five drones over the Sea of B次元官网网址婤次元官网网址婣zov and the countryB次元官网网址檚 western Bryansk and Smolensk regions, the Russian Ministry of Defense said. A man was killed in shelling of RussiaB次元官网网址檚 Belgorod region, which borders Ukraine, according to regional Gov. Vyacheslav Gladkov.

The governor of eastern UkraineB次元官网网址檚 partly occupied Donetsk region said Saturday that Russian attacks had killed five people and wounded seven the previous day.

In the Russia-controlled part of the region, Moscow-installed Gov. Denis Pushilin said three people were killed and four were injured in shelling by Ukrainian forces Saturday morning.

A policeman was killed in the partly occupied region of Kherson as a result of a Russian drone attack on a checkpoint, the Ukrainian National Police said.

Tom Williams, The Associated Press