The man walks in, typically wearing a black cap.

Each time, he pulls out a silver handgun and demands money from the bank teller.

In one incident, he was seen leaving in what appeared to be a red, four-door, Ford Focus, according to Clearwater Police.

It has happened four times already, and on Monday investigators released a sketch of the suspect in an attempt to identify the man who they say has robbed two PNC Banks in Clearwater, a branch in Largo and a credit union in New Port Richey in a little less than two months.

The man is described as white, 25 to 35 years old, about 5-foot-8 with a thin build and short, brown hair, according to police.

A $25,000 reward is being offered for information leading to an arrest and conviction. The reward was increased from $10,000 after the Largo robbery June 8.

Here is a list of the incidents:

• May 26 at PNC Bank, 2498 Gulf to Bay Blvd., Clearwater
• June 8 at PNC Bank in Largo
• June 19 at PNC Bank, 2575 Countryside Blvd., Clearwater
• July 3 at Florida Central Credit Union in New Port Richey

Anyone with information is asked to contact the Clearwater Police Tip Line at 727-562-4422 or send an anonymous text to 847411. Anonymous web tips can also be sent to the Clearwater Police website or Facebook page.