Ukraine’s air defence systems were engaged in repelling a Russian air attack on the capital, Ukraine’s military said on Sunday. “Air defence systems are being activated on the approaches to Kyiv,” Serhiy Popko, the head of Kyiv’s military administration, said on Telegram. “Stay in shelters until the air raid alarms is lifted.”

Russian missiles and artillery fire in north-east and southern Ukraine killed at least three people on Saturday, law enforcement agencies said. A missile attack was launched around 3.15am on the town of Barvinkove in Izium district, the north-east Kharkiv region’s prosecutor’s office said. The statement listed the dead as two men aged 48 and 69 and said about 50 buildings were damaged in the strike, apparently by three Russian Iskander missiles. Another strike hit an agricultural business in the village of Oleksiivka, it said, with no reported casualties.

Separate artillery shelling later on Saturday killed a 44-year-old man in the city of Nikopol in Ukraine’s south, the national police said.

The death toll from a Russian strike on a playground in Mykolaiv on Friday rose to four, including one child, with 24 injured, the mayor of the southern city, Oleksander Senkevitch, posted on Telegram.

Donald Trump says he will “prevent world war three from happening” and that he will have the war between Russia and Ukraine “settled” if he is re-elected in November. “You’re very close to world war,” the US Republican presidential nominee told a campaign rally in Michigan. “I will restore a thing called peace through strength.” Trump’s comments came a day after he said he had a call with Volodymyr Zelenskiy and told the Ukrainian president he would end the war. Trump has repeatedly claimed he would end the war quickly, without giving details as to how. Zelenskiy said he had agreed to arrange a meeting with Trump.