PHILADELPHIA (CBS) — Police are searching for three men they say tied up and robbed four Temple University students at an off campus apartment in North Philadelphia.

The incident happened around 7:30 p.m. Monday along the 1800 block of North 18th Street.

Police say a female student was walking home when three black males began to follow her. The men allegedly forced her inside a second story apartment where she and her three roommates were bound with duct tape and robbed. Police say two of the men were armed.

Authorities say the suspects stole computer equipment, cell phones, credit cards and an undisclosed amount of cash, and then fled the scene.

A description of the suspects was not immediately released. No arrests have been made.

None of the victims were injured.