OMAHA, Neb. -- Authorities in the metro area are investigating a robbery that happened at an Omaha gas station. 

The Omaha Police Department said they are investigating a robbery that happened at the 107 S 40th St. Casey's early Wednesday morning. 

Officials said they responded around 4:40 a.m. for the call, and OPD said the officers determined two black males entered the store. Police said the two showed a firearm and demanded money. 

OPD said the suspects took cash and left in a white sedan. Both suspects were reported to be wearing hooded sweatshirts. 

This is an ongoing investigation.