PORTSMOUTH, Va. (WAVY) — Police say a man caught on camera robbing a Dollar General in Portsmouth over the weekend has been arrested.

According to Portsmouth Police, officers responded to the commercial robbery on June 18 at the Dollar General near the 3600block of high Streeet.

A preliminary investigation of the incident revealed that the unknown suspect approached the cashier, implied that he had a weapon, and threatened the cashier to him an undisclosed amount of money.

Police say they’ve also acquired video footage of the same man robbing a Metro PCS Tuesday in Portsmouth.

On Wednesday, June 22, police say the man, identified as 22-year-old Derek Porter, was arrested andcharged with two counts of robbery.

Those with information are encouraged to submit a tip via P3 tips or call the Crime Line at 1-888-LOCK-U-UP.

Check WAVY.com for the latest updates.