UPDATE: The San Francisco Police Department and University Police Department confirmed that the Cesar Chavez Student Center is safe to reenter, determining that there is no threat to the building. Officials reopened the student center for business at 12:58 p.m.

“I am grateful for the rapid response of our University police and the San Francisco Police Department,” said SF State President Leslie E. Wong. “We have returned the building to service and remain vigilant about campus safety.”

Student and faculty evacuated the Cesar Chavez Student Center Thursday after a bomb threat to the bookstore was reported to the University Police Department at 11:06 a.m., according to University spokesperson Adrianne Bee.

Officers and bomb-sniffing dogs blocked off access to the student center as students waited outside for updates on the bomb threat.

Police began evacuating students from the building at 11:07 a.m. and cleared the facility by 11:19 a.m. according to Bee. Three K-9 units were sent in to sweep the building.

Azadeh Ziai, who works at Natural Sensations, a shop inside the student center, was getting ready to start her break when white strobe lights started to flash and she was evacuated from the building.

“My boss came out and was like ‘OK, everyone has to get out,’” Ziai said. “I thought it was a practice, I didn’t even think it was a big deal.”

The Emergency Notification System sent out several updates to students after 11:27 a.m., though police on the scene could not comment.

“Once I found out it was a bomb threat and I saw there was police cars and the dogs, I realized it was a big deal,” Ziai said.

Alternate study locations were established at the Towers Conference Center, according to a University update. Classes were not cancelled.