An unarmed suspect was arrested on Feb. 8, in connection to a robbery that took place at the Wells Fargo bank on 78th Avenue Southeast at about 2:30 p.m., said Mercer Island police.

Callers reported a male, described to be in his early 40s, entered the bank, approached a teller and passed them a note demanding money. The teller complied to the demands.

The bank set off a silent alarm. Police quickly arrived on scene and as the suspect exited the branch he was taken into custody without any incident, said Mercer Island Sargeant Ryan Parr. The suspect was identified by multiple witnesses.

“This was kind of an open-and-shut case,” Parr said, adding that the suspect was involved in a 2014 bank robbery. In this instance, the suspect had $380 in hand — allegedly taken from the bank — when he was detained by officers.

No motive was determined for the robbery. Authorities are still following up on evidence and expect to file charges by the end of the week.