The FA will discuss with Huddersfield Town officials the moment Manchester United fans ran on the pitch during the FA Cup fifth-round tie at the John Smith's Stadium on Saturday.
The incident happened after Romelu Lukaku's second goal sent United on their way to the quarter-finals, where they have been drawn to face Brighton, with a 2-0 victory.
It is a criminal offence to enter the field of play and questions will be asked by the FA about crowd and player safety.