A machete-wielding man injured two people and himself Thursday in a wooded area of the University of Arkansas campus, officials said.

University spokesman Steve Voorhies said the attack happened around 7:15 p.m. He said no one involved is believed to be a student and campus operations weren’t affected. One of the victims were in critical condition.

University police Capt. Matt Mills says the suspect was taken to a hospital, where he was arrested.

Mills said police were collecting evidence at the scene and conducting interviews at the hospital late Thursday. He said it isn’t immediately clear what prompted the attack and no identities were released.

Voorhies said the attack happened in the same area where a homicide occurred earlier this year.

The Associated Press contributed to this report.