Newspaper clippings about mass shootings were found at the home of a Connecticut college student arrested near campus while allegedly carrying two handguns with an assault rifle left in his car, police said Wednesday.

No shots were fired and no one was injured in Tuesday's scare, which led to a campus lockdown of more than four hours at the University of New Haven.

William Dong, 22, was charged with illegal possession of an assault weapon, illegal transport of an assault weapon, breach of peace and illegal possession of a weapon in a motor vehicle, West Haven police announced. Authorities say Dong has permits for the handguns.

He was detained on $500,000 bail and faced arraignment Wednesday. It's not clear whether he has a lawyer.

The newspaper clippings and ammunition were found at Dong's Fairfield home, police said.

The university lifted the lockdown around 5:30 p.m. Tuesday after police searched the main campus, having searched the north and south campuses earlier in the afternoon and lifting restrictions there. Evening classes were canceled.

About 6,400 students attend the school. The majority of its 4,600 undergraduates live in university housing.

Several nearby public schools issued shelter-in-place orders as a precaution.

The scare was the third at a Connecticut university in the past several weeks.

Last week, Yale University in neighboring New Haven was locked down for six hours after a man called police and said somebody was coming to shoot up the campus. Police have said that appeared to be a hoax.

Central Connecticut State University was in lockdown for hours Nov. 4 after reports by witnesses of a masked man carrying a gun or sword. Police arrested a student, David Kyem, who said he had been wearing a ninja-like Halloween costume and meant no harm. He faces charges including breach of peace.