A classical music presenter on BBC Radio 3, Petroc Trelawny, has been arrested in Zimbabwe for not having a work permit.
Mr Trelawny was compering at a music festival in Bulawayo when he was detained, said the Zimbabwe Vigil pressure group.
Mr Trelawny, who presents Music Matters, In Tune and Live in Concert, is now in custody in the Zimbabwean capital Harare.
He was arrested on Thursday.
Mr Trelawny was not attending the event, organised by the Zimbabwe Academy of Music, in any BBC capacity.
A spokesman for the corporation said: "We are aware of the situation and hope it will be resolved as quickly as possible."
Mr Trelawny has been visited by the British Ambassador Deborah Bronnert.
Rose Benton, co-ordinator of Zimbabwe Vigil, said: "He was apparently the only musician without a work permit and that is why they arrested him."