Russian airstrikes inflicted more damage on Ukraine on Thursday, with the latest barrage smashing into energy infrastructure, apartment buildings and an industrial site. At least four people were killed and five others wounded in drone and missile strikes around the country, authorities said.

Separately, U.N. Secretary-General Antonio Guterres announced an extension of a four-month-old deal to ensure the safe delivery of export of grain, foodstuffs and fertilisers from Ukraine through the Black Sea just days before it was set to expire.