A “serious threat” that led to the closure of Scarborough High School on Tuesday came from out of state and authorities said later in the day that it was not credible.

The high school will reopen Wednesday morning, Superintendent Geoff Bruno wrote in a message to high school families and staff.

Authorities have identified a suspect who allegedly sent several texts to a Scarborough High School student, and the juvenile has been arrested, Scarborough police said in a statement Tuesday night.

The nature of the threat has not been made public. Scarborough police and “an outside law enforcement agency” tracked down the out-of-state suspect, who will face unspecified criminal charges, police said.

“The Scarborough Police Department wants to assure the public that the threats made during this incident are no longer credible,” police said.

Scarborough police and school department officials, and the State Computer Task Force, investigated and determined that the text messages, which were received by the student Monday night, originated from a location in another state.

“The threat was specific to today, Tuesday, Oct. 4th, and is not credible,” Bruno said. “Our administrative team and Scarborough Police have determined it is safe for students and staff to resume classes and activities Wednesday morning, Oct. 5, 2022. Our first priority is the safety of our students and staff.”

In his message, Bruno said police will be present at the high school Wednesday morning for additional assurance and support.

Students who are feeling anxious should not hesitate to reach out to administrators, guidance counselors, social workers or a staff member, the superintendent said.

“Because of the timing of the receipt of the threat, the situation continues to be investigated by school authorities and law enforcement. The safety of our students and staff is of primary concern, and any threats of violence are taken very seriously,” school officials said a message sent to parents Tuesday morning.