Jazz FM has apologised after the station broadcast audio of what appeared to be part of a gay porn film on Saturday night.
The station called the incident, when a few minutes of audio footage was broadcast, "highly regrettable."
“Unfortunately we had an unauthorised access to the live feed this evening which resulted in a highly regrettable incident.
“Please accept our profound and sincere apologies for any offence that may have been caused.”
Listeners challenged the station on the social media site twitter, asking just after 7pm on Saturday evening:
The radio station soon apologised on twitter, saying:
But not everyone was offended by the early evening unexpected broadcast, with one user tweeting:
Head of programming Miki Vitti said: “There was unauthorised activity and behaviour in the studio which we take very seriously and we will be taking the appropriate disciplinary action against the individual concerned.
“In addition I will apologise to the Jazz FM audience at the beginning of next week's programme.”