Two students at the Art Center College of Design in Pasadena lost their cellphones to a robber in a strong-arm robbery early Tuesday morning.

The victims, a man and a woman, both 21 years old and Pasadena residents, were walking east on Fillmore Street from the Arroyo Parkway at about 2:18 a.m. when the suspect walked up to them from behind and pointed what they thought might be a handgun at them.

Pasadena police Lt. Pete Hettema said the victims heard the suspect as he approached.

They turned around and the suspect was holding his arm under a sweatshirt simulating a firearm, Hettema said. The suspect demanded money and reached into the pocket of both victims and stole their cellphones, before fleeing on foot.

A few minutes later, as the victims walked toward their homes, the same suspect appeared again.

He checked them again in an additional attempt to find more that he could steal, but they didnt have anything else, Hettema continued. He physically grabbed the female and there may have been some kind of a sexual attempt but she screamed and got away.

Both victims were able to run from the suspect and call police.

Hettema said police were not given a clear description of the suspect, except that he was probably Hispanic, in his 20s, and wore a dark-colored baseball cap.

Anyone with information that could help to arrest the suspect is advised to call the Pasadena Police, at (626) 744-4501.