BERKELEY -- BART police arrested a juvenile Friday morning who is suspected of robbing at least three BART passengers at gunpoint at the North Berkeley station in the last eight days.

The juvenile robbed his victims at similar morning commute times and at the same location, in the parking lot. Victims reported a similar description.

Around at 6:45 a.m. June 18, the suspect demanded cash from a victim in the west parking lot of the North Berkeley station before running away, and then robbed someone else five minutes later.

On Wednesday, the suspect demanded cash again at 5:47 a.m. No one was injured in any of the robberies.

BART police and Berkeley police staged extra patrols at the station Thursday. On Friday morning, a BART police detective saw someone matching the description of the suspect. At about 6 a.m., BART police arrested the suspect on the edge of the station near Franklin and Francisco streets.

"This case showed great detective work and collaboration within the Department, resulting in the arrest of someone who was repeatedly targeting our passengers," said BART police Chief Kenton Rainey in a statement. "Berkeley Police also assisted in our efforts to locate the suspect."

Police found a gun and took the suspect to Alameda County Juvenile Hall.