Russia is poised to assault Pokrovsk, a crucial supply and reinforcement hub for Ukraine's frontline troops.

Moscow says it has "no worries" about the visit, which is expected to happen next week.

Authorities say a special forces raid had freed some hostages and "neutralised" all the attackers.

PM Narendra Modi pays a historic visit to Kyiv and says he is prepared to play a role to bring peace.

As Russian forces make slow progress in eastern Ukraine, Ukraine's military stages a surprise cross-border attack.

Vladimir Kara-Murza, a Russian writer and activist, was one of 24 prisoners released on 1 August.

Ukraine's incursion into Kursk raises questions about Mr Putin's ability to keep Russia safe.

Russian leader Vladimir Putin has described the cross-border offensive as a "major provocation".