Donald Trump’s special envoys Steve Witkoff and Jared Kushner are expected to travel to Moscow before visiting Kyiv on 5-6.

The trip came as Ukrainian forces have stepped up attacks deep inside Russia, including in the capital.

MOSCOW/LONDON/DUBAI, Sept 2 (Reuters) - Russia vowed to head off any disruption to civil aviation on Wednesday after a warning by Ukrainian President Volodymyr Zelenskiy that its drones had made Russian airspace dangerous to use.

Relations between London and Moscow reached another peak of tension in August over the UK’s support for Ukraine. The success of Ukraine’s long-range

"Temporary restrictions on the arrival and departure of aircraft have been introduced," Russia's Federal Air Transport Agency (Rosaviatsia) said.