KYIV, Ukraine (AP) — Weekend shelling by Russian forces killed at least seven civilians, Ukrainian officials reported Sunday as Pope Francis and Archbishop of Canterbury Justin Welby used their traditional Easter messages to highlight the war in Ukraine and other conflicts around the world.

While Russia continued to concentrate on seizing all of Ukraine’s industrial east, two other provinces – Kharkiv in the northeast and Zaporizhzhia in the southeast – came under missile, rocket and artillery fire, the Ukrainian military reported.

Kharkiv governor Oleh Syniehubov said two men died Sunday in shelling in Kupiansk, a city that Russia held before Ukrainian forces regained control of almost all of the province.

The city remained under attack later Sunday as Russian forces targeted residential areas with multiple rocket launchers, Syniehubov said. Elsewhere in the province, a 30-year-old man was hospitalised in serious condition after Russian shelling of the city of Chuhuiv, he said on Telegram.

Shelling also killed two people overnight, one of them a child born in 2012, in the city of Zaporizhzhia, the capital of that province, according to City Council Secretary Anatoliy Kurtev.

The Zaporizhzhia region’s governor, Yurii Malashko, said 18 communities in all were shelled. Three people were killed and five were wounded on Saturday, Malashko said.

Zaporizhzhia is home to Europe’s largest nuclear power plant and one of four Ukrainian provinces that Russian President Vladimir Putin illegally annexed in September. Since then, Russia’s military has sought to oust Ukraine’s troops from those areas, especially Luhansk and Donetsk provinces, which make up the industrial region known as the Donbas.

Bakhmut, a city in Donestsk, has seen the 13-month war’s longest battle. Western analysts have said Russian forces recently made it into the center of the city. Seizing Bakhmut after more than eight months would give the Kremlin a badly wanted victory and a path to push on toward bigger Ukrainian-held cities.

The Russian army is moving elite units to Bakhmut, Colonel Serhiy Cherevaty, a spokesperson for Ukraine’s Eastern Group of Forces, said Sunday.

Cherevaty said the Wagner Group, a private Russian military company whose fighters have spearheaded the offensive on Bakhmut, was incurring heavy losses, making it necessary to move in regular army units from the regular army, including paratroopers and motorized riflemen.

The vast majority of Ukrainians with a religious affiliation identify as Orthodox Christian, a faith that observes Easter on April 16 this year. Some Catholics celebrated Easter on Sunday, while Orthodox churches marked Palm Sunday this weekend.

While delivering his Easter address from the central balcony of the Vatican’s St Peter’s Basilica, Pope Francis implored God to “help the beloved Ukrainian people on their journey towards peace, and shed the light of Easter upon the people of Russia.″

”Comfort the wounded and all those who have lost loved ones because of the war, and grant that prisoners may return safe and sound to their families,” Francis said.

Easter affirms the Christian belief that Jesus rose from the dead days after his crucifixion. Welby, who as archbishop of Canterbury is the ceremonial head of worldwide Anglican Communion, said the occasion provided hope that “true peace is no aimless daydream, but a reality offered because Christ was raised from the dead.”