Pontiac High School was evacuated and classes dismissed Tuesday morning for a bomb threat.
The Oakland County Sheriff's Office said a suspicious package was reported just after 9 a.m.
The school is located at 1051 Arlene Avenue, which is near Joslyn and Perry Street.
"They called us during third hour and told everyone to evacuate the area because they said there was a bomb threat and we all had to leave," said student William Randall.
Undersheriff Mike McCabe said a bomb-sniffing dog and the Michigan State Police bomb squad were called to the scene.
He also said a 14-year-old student was questioned because of a device seen in his backpack by another student.
"It's a shame that we live in a society today that has these types of events," said Pontiac Schools Superintendent Dr. Brian Dougherty. "It presents a danger to kids, even through the evacuation process. When you start to move students around, anything can happen."
Administrators made the decision to close school for the day following the threat.
"They need to understand that this is how people get hurt. These kids could have trampled over each other. It caused fights out here. Our kids are not getting an education because you want to be ignorant," said Joyce Carthon, a grandparent of a student.
Investigators did not find any explosive devices at the school.
Sheriff's deputies said the student could face charges for making the threats.
School will remain closed Friday due to a previously scheduled professional development day for teachers.