Yet another tragedy has hit high school football, with the news that a Seattle senior died on Monday morning, reportedly from a traumatic brain injury suffered during a game last week.

The death of Kenney Bui of Evergreen High School comes a week after Evan Murray, a New Jersey student, died from massive internal bleeding after taking a hit during a game. Two other high school football players were killed in September – on the 19th Ben Hamm of Bartlesville, Oklahoma, died from injuries sustained eight days earlier, and on 4 September Tyrell Cameron of Winnsboro, Louisiana, died during a game.

According to the National Center for Catastrophic Sports Injury Research at the University of North Carolina, five players died last season from injuries directly related to high school football. Since 2005, the number to have died is 30.

“It is with great sadness that school board president Bernie Dorsey and I share with you that TEC High School senior Kenney Bui, who was critically injured in Friday night’s Evergreen v Highline football game, died this morning at the hospital,” Highline public schools superintendent Susan Enfield said in a statement.

“This is a devastating loss for all of us – Evergreen students, families, and staff, and our entire Highline community. Our deepest condolences go out to Kenney’s family and all who knew him. Please join us in keeping them in your thoughts and prayers.”

Highline Public Schools spokeswoman Catherine Carbone Rogers said its coaches are trained to deal with medical emergencies. “All of our coaches are certified in concussion recognition and prevention, CPR, and sudden cardiac arrest,” said Rogers.