Pittsburgh Bureau of Police detectives are investigating a series of armed robberies at city gas stations.
A gas station on the 4000 block of Liberty Avenue was robbed around 9:50 p.m. on Sunday. A gas station on the 4000 block of Beechwood Boulevard was robbed around 11:30 p.m. on Sunday. And a gas station on the 2900 block of Banksville Road was robbed around 2 a.m. on Monday.
In all three cases, three males in dark clothing entered the store and demanded cash. At least one suspect had a gun.
No arrests at this time. Police are interviewing witnesses and reviewing possible video. The investigations are ongoing.