Ukraine's armed forces claim to have killed "around 100" rebel fighters near the eastern town of Snizhne.
Defence officials said government forces had also destroyed 11 missile systems and tanks but the claims could not be immediately verified.
While rebels said they had seized two settlements west of Snizhne and captured 13 Ukrainian troops, including three officers.
More top news
The Duchess of Cambridge has been driven to St Mary's Hospital in London in the "early stages of labour", Kensington Palace has said.
The programme doesn't shy away from the topic of Diana, nor ignore the debate on the potential for Camilla to one day be called Queen.
PM faces challenges to EU withdrawal policies from both MPs and peers.