18:00Six O'Clock News30/03/2018 The UK is told to reduce diplomatic staff numbers further in RussiaBBC Radio 4 Duration: 30 minutes Fri 30th Mar 2018, 18:00 on BBC Radio 4 FMAvailable for over a yearListen nowThe diplomatic row over the Salisbury nerve agent attack has intensified.GenresNewsFormatsBulletinsBrandSix O'Clock News Source: BBC Online