Police are investigating an assault at a University of Massachusetts - Amherst residence hall involving two suspects and at least one gun, though no shots were fired.

At a press briefing Thursday evening, UMass Police Chief Tyrone Parham said the incident was "not a random act," according to The Boston Globe. One student sustained head lacerations in the assault, and police are searching for two suspects, who were armed with a handgun.

The suspects fled the scene in a car, and the victim was treated for minor injuries at Cooley Dickinson Hospital in Northampton. UMass - Amherst issued a lockdown around 5:15 p.m. for the whole campus, though the suspects were in the Pierpont Hall dormitory. After police arrived on scene they secured the building's perimeter, The Globe reported, and determined no shots were fired.

The school lifted the lockdown two hours after issuing it.

"We have good confidence right now that [the suspects] are not UMass students," Parham said.

MassLive.com reported the suspects were two white males, one of which was wearing a dark colored shirt and a gold chain, and the other a gray sweatshirt. The nearby Smith College alerted its students to steer clear of the UMass - Amherst campus.

"Our officers responded promptly and our community responded well to the emergency communications that we shared in a timely manner throughout the incident," Parham said in a statement. "I want to thank everyone involved for their assistance and cooperation."

Jena Janovy, an enterprise editor for ESPN, was teaching a journalism class during the lockdown while hosting two other ESPN employees in her classroom: television host Jemele Hill and columnist Howard Bryant.

Grateful my #UMass #journalism class was calm, thoughtful during campus lockdown after reports of "hostile armed person" in student dorm.

— Jena Janovy (@JenaJ34) February 19, 2016

Lockdown lifted. We're all safe. Thank you, all https://t.co/g9ObioXSJI — Howard Bryant (@hbryant42) February 19, 2016

Thank you all for the updates and prayers. Haven't been alerted to any shots fired, but everyone has been advised to take shelter.

— Jemele Hill (@jemelehill) February 18, 2016