A Russian missile attack early on Sunday struck an apartment block and other residential buildings in Ukraine’s southeastern city of Zaporizhzhia, killing at least 13 people and wounding 89 others, Ukrainian officials said.

Rail services and partial road traffic meanwhile resumed a day after a powerful blast damaged a bridge linking Russia to Crimea that is a key supply route to Moscow’s forces battling in southern Ukraine and an imposing symbol of its annexation of the peninsula.

Saturday’s explosion on the bridge over the Kerch Strait prompted gleeful messages from Ukrainian officials but no claim of responsibility. Russia did not immediately assign blame for the blast, which images showed blew away half of a section of the bridge’s roadway, with the other half still attached.

The pre-dawn strikes on Zaporizhzhia on Sunday were the second such attack against the city in three days.

Russian aircraft launched at least 12 missiles, partially destroying a nine-storey apartment block, levelling

five other residential buildings and damaging many more, Oleksandr Starukh, governor of the Zaporizhzhia region, said on state-run television.

At least 13 people were killed and 89 others were wounded, 60 of whom were hospitalised, Ukrainian officials said. The wounded included 11 children.

Ukrainian President Volodymyr Zelenskiy condemned the attack as “absolute evil” by people he called “savages and terrorists”, vowing those responsible would be brought to justice.

Zaporizhzhia city, about 52km from a Russian-held nuclear power plant, has been under frequent shelling in recent weeks, with 19 people killed on Thursday.

Emergency workers and firefighters cordoned off the nine-storey building and dug for survivors and casualties in the smouldering rubble of a massive central section that had collapsed.

The blast wrecked cars and left torn metal window frames, balconies and air-conditioners dangling from the building’s shrapnel-pitted facade.

Russian deputy Prime Minister Marat Khusnullin said divers would start work on Sunday examining damage to the Crimea Bridge, with a more detailed survey above the waterline expected to be complete by day’s end, domestic news agencies reported.

“The situation is manageable — it’s unpleasant, but not fatal,” Crimea’s Russian governor, Sergei Aksyonov, told reporters. “Of course, emotions have been triggered and there is a healthy desire to seek revenge.”

Russia’s transport ministry said freight trains and long-distance passenger trains across the bridge were running according to schedule on Sunday. Limited road traffic resumed on Saturday around 10 hours after the blast.

“Only passenger cars will use the road section of the Crimean bridge until a special order is issued. The railway line will operate as normal. Buses of all types and heavy vehicles will be transported by ferry,” Aksyonov wrote on the Telegram messaging app.

Tetyana Lazun’ko, 73, and her husband, Oleksii, took shelter in the hallway of their top floor apartment after hearing sirens, warning of an attack. They were spared the worst of the blast that left them in fear and disbelief.

“There was an explosion. Everything was shaking,” Lazun’ko said. “Everything was flying and I was screaming.”

Shards of glass, entire window and door frames and other debris covered the exterior floors of the apartment where they’d lived since 1974. Lazun’ko wept inconsolably, wondering why their home in an area with no military infrastructure in sight was targeted. “Why are they bombing us. Why?” she said.