22:00Biggest Russian bombardment on Ukraine yetUkraine crisis:diplomatic efforts intensifyBBC Radio 4 Duration: 45 minutes Fri 21st Jan 2022, 22:00 on BBC Radio 4 LWAvailable for over a yearListen nowIn-depth reporting, intelligent analysis and breaking news from a global perspectiveGenresNewsBrandBiggest Russian bombardment on Ukraine yet Source: BBC Online