Omaha police are investigating three robberies that happened Monday evening and investigators say they could be related.

The crime spree began around 6 p.m. at the Subway near 50th and Center. Police say two men armed with guns demanded cash and fled to the southwest.

Twenty minutes later two men armed with guns held up O'Reilly's Auto Parts near 72nd and Pratt.

Thirty minutes later two men with a similar to the description of the previous robbery suspects walked into the Kum and Go near 154th and Pacific, pulled guns and got away with cash.

Police say the getaway car was found abandoned near 90th and Maple, but there was no sign of the suspects.

Omaha Police says they are looking into the possibility that all of the robberies are releated.