There's been a sharp drop in the audiences for two of the BBC 's flagship radio stations since the start of the year, according to newly released figures on radio listenership.
Radio 1 and Radio 5 Live have seen their average weekly listeners drop by 8% and 13% respectively, with the latter losing more than three-quarters of a million in six months.
Other stations have held steady, according to data released by Radio Joint Audience Research ( Rajar ) - with the audience for Radio 6 Music said to have reached a record high.