Russia and Ukraine started a major prisoner exchange on Monday after days of wrangling cast doubt over the only concrete result of peace talks last week in Turkey.

Warner Bros Discovery said on Monday it would split into two companies, separating its studios and streaming business from its fading cable television networks as the parent of HBO and CNN looks to compete better in the streaming era.

The Russian Ministry of Defense said soldiers have advanced into the Dnipropetrovsk region in south-central Ukraine.