MINNEAPOLIS (WCCO) – After a week of investigation, authorities in west-central Minnesota say they have arrested a man in connection to multiple robberies made in recent weeks.

Alexandria police say officers arrested 27-year-old Michael Warren after they had probable cause to believe he was involved in the robberies.

READ MORE: 2nd Man Charged In Minneapolis Gun Battle-Turned-Crash That Killed Autumn Merrick

Police did not say where, when or how Warren was arrested, and they did not detail the robberies he is suspected in committing.

READ MORE: 'We Will Not Tolerate Sexual Misconduct In Any Form': Minnesota Colleges Investigating Alleged Sex Competition

However, there has been a string of armed robberies in the area since late last month. In the robberies, the suspect – described as a man in his twenties, standing about 5-feet, 9-inches tall – displayed a handgun, demanded cash and then tied workers up in the back room.

The businesses robbed were a video store, a gas station and a sandwich shop.

MORE NEWS: 'We Are Pleasantly Surprised': Minnesota's Corn, Soybean Yields Better Than Expected

Police say that because the investigation is still on-going, they will not be releasing any more details on Warren’s arrest.