The University of Rhode Island was on a 2 and a half hour lockdown on Thursday after students and staff believed there was a gunman on campus.
The man was reported to be in Chafee Hall on the school's South Kingstown campus. Hundreds of students ran out of the building after they believed he would shoot.
Police received a call around 11:20 a.m. about a man who knocked on a door at Chafee Science Center saying, "I'm a good guy and I have a gun."
"We're looking to track down the person who was the one who made those comments," Col. Steven O'Donnell said.
Students panicked after the person made the comment.
"All of a sudden, we heard someone yell, 'You're a nice guy! You're a nice guy!' and sounding scared," student Tori Danielson said. She was sitting in a class of more than 350 people in Chafee Hall. "Everybody started running and screaming out of the room, and our professor told us all to run. And everybody just ran out."
Student Taylor Kinzler said she was on the second floor of the building when she heard screams on the first floor.
Soon after, an announcement was made on the public address system telling students to seek safety.
"They did an amazing job getting reinforcements here and the police came immediately," she said. "At first, we thought it was a joke. Nothing like this ever happened before. But once the alarm went off and people started running in the hallway…it's been very scary with all the recent shootings."
But after investigating, authorities found that there was no gunman.
"The investigation has revealed that at no time was there a gun or an active shooter on the campus," the university wrote on its Facebook. "Everyone can resume their normal activities.
Classes for the rest of the day have been canceled and are expected to resume tomorrow.