Russia-Ukraine war update: what we know on day 15 of the Russian invasion

• A meeting in Turkey between Russia’s foreign minister, Sergei Lavrov, and his Ukrainian counterpart, Dmytro Kuleba, ended with little progress appearing to have been made. In a news conference afterwards, Reuters reports that Kuleba said that no progress was made on a ceasefire and that Lavrov did not commit to a humanitarian corridor in the south-eastern city of Mariupol, where Kuleba said the situation was most difficult. Lavrov also said that Russia would try never again to be dependent on the west.

• A humanitarian convoy trying to reach Mariupol on Thursday was forced to turn around owing to fighting, Reuters reports the Ukrainian deputy prime minister as saying. An airstrike on a hospital in Mariupol on Wednesday killed three people, including a child, the city council said on Thursday, reports the Associated Press. The attack wounded 17 people in the besieged port city, including pregnant women, doctors and children.

• Ukraine opened seven humanitarian corridors, including the one from Mariupol, according to the country’s deputy prime minister. The governor of Sumy said three columns of evacuees were leaving after a ceasefire was agreed.