Updated: Wednesday, 17 Feb 2010, 7:17 AM EST
AMHERST, N.Y. (WIVB) - The 'all clear' has been given at the University at Buffalo, just hours after a campus-wide alert about a possible gunman.
With guns drawn, University and Amherst Police surrounded Lockwood Library Tuesday afternoon.
A student reported seeing a man walk into the building with a gun.
Police checked surveillance video and say they found what appeared to be a man carrying something into the library.
"Could of been a weapon underneath a coat, could have been one of these tripods for a camera, we couldn't say for sure," said Chief Jerry Schoenle of the University Police Department.
Police evacuated the library and all evening classes were canceled.
UB Spectrum Editor Steve Marth said, "Everyone I spoke to didn't see anyone, but they heard screaming. That's all we know. So I don't if it's just from the scare of the threat, people were screaming, or if there was an actual incident."
News 4 obtained surveillance video from inside the library.
Police spent hours searching, but found no gun, and no suspicious person.
By 8 police gave the 'all clear' and a university spokesperson said there was no threat to the campus.
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