18:00Six O'Clock News05/03/2018 Suspected poisoning of former Russian spyBBC Radio 4 Duration: 30 minutes Mon 5th Mar 2018, 18:00 on BBC Radio 4 LWAvailable for over a yearListen nowThe man - who spied for Britain - was exposed to an unknown substance along with a woman in SalisburyGenresNewsFormatsBulletinsBrandSix O'Clock News Source: BBC Online