Gunmen rob University of the Sciences fraternity

UNIVERSITY CITY (WPVI) -- Police are looking for two men that robbed members of a University of the Sciences fraternity in Philadelphia's University City section.

It happened around 2:30 a.m. at the Upsilon Sigma Phi Frat house, located along the 400 block of South 42nd Street.

Police say at least one of the two men showed a gun upon entering and ushered the organization's president to an upstairs room where he forced him to turn over approximately a thousand dollars of the frat's dues money.

The other man kept watch over nine frat members present.

The two suspects fled the scene and remain at large.

No one was injured during the ordeal.