Oklahoma State University women's basketball coach Kurt Budke and assistant coach Miranda Serna were killed in a plane crash, according to CNN.
Former Oklahoma state Sentor Olin Branstetter and his wife also died in the crash.
The crash occured in Perry County, Arkansas, leaving no survivors. The plane crashed because of "unknown circumstances," around 4:30pm yesterday. No other information has been released.
Budke and Serna were on a recruiting trip to Little Rock, Arkansas.
NCCA President Mark Emmert said, "For any coaching community to lose bright stars like Kurt and Miranda is tragic. This is a profound loss for the Oklahoma State women's basketball family, the entire university and future women's basketball players as well."
The school has canceled Saturday and Sunday games and provided grief counseling for athletes and staff.
Jim Littell, the team's associate head coach, is set to take over as interim head coach.