Thames Valley police are investigating an "exposure incident" during Newcastle's FA Cup win at Oxford United.
FA Cup Football
BBC One will show live coverage of Liverpool's FA Cup fifth-round tie at Chelsea as well as Sheffield Wednesday's match at home to holders Manchester City.
Tottenham battle past Southampton in a thrilling FA Cup fourth-round replay to set up a home tie against Norwich City.
Son puts Tottenham 3-2 up after Angus Gunn brought down the South Korean in the box
Audio & Video
Watch highlights as Derby County beat Northampton Town 4-2 setting up a Manchester United fifth-round FA Cup tie.
The FA Cup can be a launch pad for young stars, says Micah Richards - who made a name for himself with a memorable appearance on the BBC when he was 17.
There are still opportunities for shocks in this week's FA Cup third-round replays - but can you name some of the sides to pull off the competition's greatest giant-killings?