University of Texas is under attack today morning. Reports noone hurt and one Gunman killed himself.

- I hope everyone who goes to U of Texas is safe. Call your buddies folks, get off the campus 

(CNN) -- A suspected gunman fired shots inside a library at the University of Texas at Austin on Tuesday morning before shooting himself, university spokeswoman Rhonda Weldon told CNN.

The gunman died, Weldon said. No one else was hurt.

An ambulance was seen just before 9 a.m. in front of the Perry-Castaneda library, CNN affiliate KXAN reported. SWAT teams, armored vehicles and helicopters surrounded the campus.

On its Facebook page, university police said they were searching for a possible second suspect. The identities of the suspects were not immediately known. Weldon said it was also not known whether the second suspect was armed.
The university was closed, said an alert posted at 9:48 a.m. on the university's emergency website.

"A suspected shooter in PCL library is dead. Law enforcement are searching for a second suspect. If you are off campus, STAY AWAY. If you are on campus, lock doors, do not leave your building," the alert said.

"It's chaos right now," said student Micah Geisenberg, who heard a gunshot as he got off a bus near the library.

Matt Holiner heard a series of loud bangs from his dorm room, a couple of blocks south of the library. He suspected they might be gunshots, especially when he saw people running away. By mid-morning, there were at least 10 police cars outside his window.

"It's been quite an exciting morning to say the least," he said.

CNN's Devon Sayers contributed to this report.