22:00Biggest Russian bombardment on Ukraine yetMore than £6 billion pledged in global push for covid vaccine.BBC Radio 4 Duration: 45 minutes Mon 4th May 2020, 22:00 on BBC Radio 4 LWAvailable for over a yearListen nowOnline summit led by EU and co-hosted by UK is snubbed by USAGenresNewsBrandBiggest Russian bombardment on Ukraine yet Source: BBC Online