(Des Moines, IA) -- Police are investigating robberies at two Des Moines Git-N-Go gas stations. Police say the Git-N-Go at 1142 42nd Street was robbed around 11:21 p.m. Wednesday. Then the Git-N-Go at 816 East Euclid Avenue was robbed about 30 minutes later. Police say the suspect was armed with a handgun and stole an unknown amount of money from both stores. They're unsure if it was the same person in both robberies.