The Magpies have announced that the supporter who became ill during Newcastle United's loss to Tottenham on Sunday is in a stable condition in hospital.
The Premier League match was called off late in the first half when the players were informed about an issue in the East Stand of St James' Park.
Spurs' Sergio Reguilon spoke with Andre Marriner about the situation, while Eric Dier spoke with fans before sprinting across the pitch to summon a doctor.
Newcastle's club doctor, Paul Catterson, brought a defibrillator to the stands, and referee Marriner suspended the game following further conversations with a steward and a police officer.
The teams returned to the play after a 20-minute delay, and Spurs went on to win 3-2.
Newcastle confirmed that the fan had been stabilized and sent to hospital, and the club issued a follow-up statement later.
A statement read: "Newcastle United can confirm that a supporter who required emergency medical treatment during the club's Premier League fixture with Tottenham Hotspur at St James' Park on Sunday is stable and responsive in hospital.
"The match was temporarily suspended during the incident, which occurred during the first half, and the supporter was awake and able to converse upon being transported to hospital.
"The club would like to thank fans for their swift actions in raising the alarm and praise those who provided immediate chest compressions, as well as thanking the on-site medical professionals who swiftly administered emergency treatment using a defibrillator located close to the incident.
"Our best wishes go to the supporter and their loved ones and we hope for a swift and full recovery."