Houston Police are investigating a robbery that happened just before 8 p.m.at the Quizno's Restaurant on Yale Street in The Heights Monday.

The owner told KPRC Local 2 the same robber has hit the business before and he always waits until no customers are in restaurant before striking. He comes in and demands cash at gunpoint.

Workers at the Subway Restaurant two miles away on Heights Blvd. near I-10 said the same suspect robbed them, too. He came in twice and had his gun concealed in a make-up bag.

The suspect was captured on surveillance video both times and employees said the police are reviewing it and trying to identify the man.