It happened at about 3:20 a.m. on Saturday.
The students were approached by three men in the parking lot of the Subway sandwich shop on Route 1, just off campus, police said. One student was assaulted. The other was robbed of his cell phone. The crime alert was issued after the incident.
It's the fourth crime alert this semester, compared to five last semester.
The Prince George's County Police Department is investigating the incident.
They're asking anyone with information to contact police (911 or 301-699-2601). Callers wishing to remain anonymous may call Crime Solvers at 1-866-411 TIPS (8477).
Tips can also be submitted on line or via text message.
To text: Text "PGPD plus your message" to CRIMES (274637) on your cell phone.