Damar Hamlin is in critical condition after his on-field collapse, the NFL announced Monday night.

Hamlin, a Buffalo Bills safety, collapsed on the field after he stood up following his tackle of Cincinnati Bengals WR Tee Higgins. Hamlin received CPR treatment on the field before being transported by ambulance to the University of Cincinnati Medical Center. Play was temporarily suspended before the league officially postponed the game.

ESPN’s Joe Buck read the NFL’s statement on air during the Monday Night Football broadcast:

Tonight’s Buffalo Bills-Cincinnati Bengals game has been postponed after Buffalo Bills’ Damar Hamlin collapsed, NFL commissioner Roger Goodell announced. Hamlin received immediate medical attention on the field by team and independent medical staff and local paramedics. He was then transported to a local hospital where he is in critical condition. Our thoughts are with Damar and the Buffalo Bills. We will provide more information as it becomes available. The NFL has been in constant communication with the NFL Players Association, which is in agreement with postponing this game.

Cincinnati’s FOX19 has also reported on Hamlin’s condition.

We’re all praying for a positive update on Hamlin.