KYIV, Ukraine — Moscow-installed officials said Ukrainian shelling killed at least 27 people and wounded 25 Sunday at a market in a suburb of Donetsk, a Russian-occupied city in the eastern part of the country.

Among the injured in Tekstilshchik were two children, said Denis Pushilin, the local leader.

Ukrainian officials in Kyiv did not comment on the incident, and the claims could not be independently verified by The Associated Press.

Both sides have increasingly relied on longer-range attacks this winter amid largely unchanged positions on the 930-mile front line in the nearly 2-year-old war.

The artillery shells that hit the area had been fired from the area of Kurakhove and Krasnohorivka to the west, Pushilin said.

U.N. Secretary-General Antonio Guterres “strongly condemns all attacks against civilians and civilian infrastructure, including today’s shelling of the city of Donetsk in Ukraine,” according to a U.N. spokesperson, adding that all such attacks are prohibited under international humanitarian law.

Donetsk is one of four regions in Ukraine that Russia annexed illegally in 2022, months after Moscow launched its full-scale invasion.

Also Sunday, a fire broke out at a chemical transport terminal at Russia’s Ust-Luga port following two explosions, regional officials said. Local media said the Baltic Sea port, about 100 miles southwest of St. Petersburg, had been attacked by Ukrainian drones, causing a gas tank to explode.

The blaze was at a site run by Russia’s second-largest natural gas producer, Novatek.

In a statement to Russian media outlet RBC, the company blamed the fire on an “external influence,” saying operations at the port were paused.

Yuri Zapalatsky, the head of the Kingisepp district on the Gulf of Finland where the port is located, said there were no casualties but the area was on high alert.

News outlet Fontanka reported that two drones had been detected flying toward St. Petersburg on Sunday morning but were redirected toward the Kingisepp district. AP could not independently verify the reports.

Russia’s Defense Ministry did not report any drone activity in the Kingisepp area in its daily briefing.

Russian officials previously confirmed the downing of a Ukrainian drone on the outskirts of St. Petersburg on Thursday.

In fighting on the front line, Russia’s Defense Ministry said Moscow’s forces had taken control of the village of Krokhmalne in Ukraine’s Kharkiv region. Ukrainian forces confirmed the settlement had been occupied but described its capture as temporary.

Ukrainian Ground Forces Command spokesman Volodymyr Fityo said Kyiv’s troops had been pulled back to reserve positions from the village, which had a population of about 45 before the start of the war.