OMAHA, Neb. -- The Omaha Police Department said they are investigating a robbery that happened Thursday morning. 

OPD said the robbery happened around 9:11 a.m. Thursday, at the Bank of the West on Harrison St. 

Officers reportedly spoke to employees who states two black males entered the bank with guns and demanded money. 

It was reported that the suspects fled the area in an unknown direction. 

This is an ongoing investigation. Authorities are offering a $20,000 reward for tips leading to an arrest.