Four people were killed when homes in the Ukrainian city of Zhytomyr were hit on Tuesday by a Russian cruise missile apparently aimed at a nearby air base, Anton Gerashchenko, adviser to the Ukrainian interior minister, said on his Telegram channel.
He said the residential buildings near the base of the 95th Airborne Brigade in Zhytomyr, 120 km (75 miles) west of the capital Kyiv, had been set on fire,
"So far, four people have died. Including a child," he said.
Moscow warned residents of the capital Kyiv on Tuesday to flee their homes and rained rockets on Ukraine's second city, Kharkiv, as Russian commanders intensified their bombardment of urban areas in a shift of tactics after their six-day assault stalled.
Ukrainian Health Minister Viktor Lyashko wrote on his Facebook page that Russian forces had killed a paediatric anaesthesiologist, firing at her car as she was driving her wounded nephew to the hospital from the village of Kukhari, in the Kyiv region.
Ukraine's defence ministry said a total of 16 high-precision guided missiles had been fired on Monday, between 7:07 p.m. and 7:51 p.m. (1707 GMT and 1751 GMT), at residential areas of Kharkiv from a strategic bomber flying over Russia's Belgorod region.
"High-rise buildings, schools, kindergartens and other infrastructure of the city were destroyed," the ministry said on its Facebook page.
"According to preliminary data, dozens of Kharkiv residents, including children, died from these airstrikes," it added.
"Unfortunately, in the current situation, it is extremely difficult for the Air Force to cover the sky in this region, because part of the country's air defence system was destroyed by Russian ballistic and cruise missile strikes."
Reuters was not able to confirm any of the incidents.
(Writing by Kevin Liffey; editing by Richard Pullin)