Audio of a woman moaning was played at high volume just as host Gary Lineker was seeking the opinion of fellow pundit Alan Shearer ahead of Liverpool's 1-0 win over Wolverhampton Wanderers.

Audio of a woman moaning was played at high volume just as host Gary Lineker was seeking the opinion of fellow pundit Alan Shearer ahead of Liverpool's 1-0 win over Wolverhampton Wanderers.

Audio of a woman moaning was played at high volume just as host Gary Lineker was seeking the opinion of fellow pundit Alan Shearer ahead of Liverpool's 1-0 win over Wolverhampton Wanderers.

The British Broadcasting Corporation (BBC) issued an apology on Tuesday after its FA Cup coverage was interrupted by a pornographic audio clip.

Audio of a woman moaning was played at high volume just as host Gary Lineker was seeking the opinion of fellow pundit Alan Shearer ahead of Liverpool's 1-0 win over Wolverhampton Wanderers.

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"I don't know who's making that noise," said Lineker with a laugh. "Somebody's sending something on someone's phone, I think. I don't know whether you heard it at home."

The former England striker later said a phone had been taped to the back of the studio set as a prank.

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"As sabotage goes it was quite amusing," Lineker said on Twitter.

The BBC issued an apology, saying: "We apologise to any viewers offended during the live coverage of the football this evening. We are investigating how this happened."