In Ukraine, a 23-year-old lorry driver was killed after a Russian air strike on a grain convoy in the Sumy region overnight, local officials have said.

Prosecutors said four others were injured in the attack after one lorry caught fire and around 20 others were damaged.

Ukraine’s air force also said it had destroyed eight out of 11 drones used by Russia, adding that grain and agriculture facilities had been targeted in the Mykolaiv region as well.

Sumy borders Russia’s Kursk region, where Ukraine has been carrying out a military incursion for nearly a month.

Progress has slowed in recent days, but Ukraine claimed last week it controlled 1,294 sq km (500 sq miles) of territory – including 100 settlements. It also said nearly 600 Russian soldiers had been captured.

Meanwhile, Russian forces are continuing to advance rapidly on a key town in Ukraine’s eastern Donetsk region – which has been the focus of Moscow’s ground offensive for months.

Pokrovsk plays a crucial role as a logistics hub for Ukrainian forces, as it is home to a key railway station and is located at the intersection of several important roads.

Ukraine’s commander-in-chief Gen Oleksandr Syrskyi described the situation in the area of Russia’s main attack as “difficult”, but added that all necessary decisions are “being made without delay”.

The most recent Ukrainian attacks on Russia’s energy facilities also come a day after a Russian guided bomb strike on a playground in Kharkiv killed a 14-year-old girl.

A similar attack on a residential building in the city in north-eastern Ukraine also killed six other people.

It also follows Russia hitting Ukraine’s energy grid with a massive wave of deadly drone and missile strikes last week – which led to at least nine people being killed over two days.

Russia began targeting Ukraine’s energy system with air strikes shortly after it began its full-scale invasion in February 2022.

Additional reporting by Richard Irvine-Brown and Benedict Garman, BBC Verify.