A 19-year-old at Binghamton University was stabbed to death on campus Sunday, the state university announced Monday morning.

The stabbing of Joao Souza happened at about 10:30 p.m. The teen is the second Binghamton student killed this year.

The university said Souza's killer fled and has not been caught.

Classes were canceled Monday as students and staff grappled with the death.

Detectives from several police agencies interviewed people throughout the night. They say the attack does not appear to be random, the university tweeted Monday morning.

The university says the victim was in his first year at the school. Authorities had not released his name.

Police have not revealed details surrounding the late-night attack, pressconnects.com reports.

The website said it's the second killing of a Binghamton student in 2018. Haley Anderson, 22, was killed at an off-campus home in March.