The BBC has apologised after a pornographic prank hit its build-up coverage of Wolves vs Liverpool in their FA Cup third round replay on Tuesday night.
Gary Lineker was presenting when he was interrupted by loud moaning noises in the studio. He later revealed on Twitter that the sound had come from a hidden mobile phone that had been "taped to the back of the set".
"I have to say, I thought it was funny," Lineker later told BBC Newsnight. "If you told me this morning that tonight I'd be on Newsnight talking about a porn scandal - I would have been terrified."
The BBC has since apologised for the incident and promised to investigate.
"We apologise to any viewers offended during the live coverage of the football this evening. We are investigating how this happened," a spokesman said.
