Follow CBSPHILLY Facebook  | Twitter

PHILADELPHIA (CBS) – The FBI is teaming up with police in Philadelphia and Cheltenham Township to find two people behind a series of robberies.

Detectives believe the pair has robbed nine businesses in the past month, including a Rite Aid Pharmacy that was hit twice.

Investigators released these photos of both suspects seen wearing black hooded sweatshirts.

robbery suspect 1 FBI: 2 Suspects Wanted In At Least 9 Robberies In Philly Area

Credit: cbs3

robbery suspect FBI: 2 Suspects Wanted In At Least 9 Robberies In Philly Area

credit: cbs3

robberies FBI: 2 Suspects Wanted In At Least 9 Robberies In Philly Area

Former President Obama Campaigning For Sen. Casey In Philly 

If you know anything about the robberies, call the FBI or Philadelphia Police Violent Crimes Task Force at 215-418-4000.

There is a reward for information leading to an arrest.