San Diego police arrested a suspect Thursday, May 31, in connection with a threat to Torrey Pines High School in Carmel Valley that lead to the school’s closure for the day, authorities announced.

Officials identified the suspect as Kevin Gregory Matlak, 21, of San Diego, according to a San Diego Police Department announcement. Authorities said they believe Matlak is believed to be a former student of the school, which is part of the San Dieguito Union High School District.

The arrest came after a threat involving possible use of weapons was made against the school at about 9:40 p.m. Wednesday, May 30, the San Diego Police Department stated. Matlak was arrested shortly after 1 p.m. May 31. He was booked into San Diego County Central Jail on suspicion making criminal threats, according to police.

Torrey Pines High School officials closed the campus for the day in light of the threat.

“While we do not have any other details regarding the threat, in an abundance of caution, we have decided to close the school,” Principal Rob Coppo said in a statement posted about 7 a.m. on the school’s official Facebook page.

Campus is set to reopen Friday, June 1, Coppo said in a follow-up announcement posted about 3:30 p.m.

The San Diego Police Department’s investigation is ongoing. Authorities ask that anyone with information regarding the threat call Crime Stoppers at 888-580-8477.