WALNUT CREEK, Calif. (KRON) — A suspect was taken into custody after holding up traffic in Walnut Creek for hours. The ramp connecting Highway 24 eastbound to Highway 680 northbound in Walnut Creek had been closed Tuesday due to police activity. The freeway reopened after the man was arrested.

The closure was caused by a person standing on the highway going through a mental crisis, California Highway Patrol Officer Adam Lane told KRON4. Crisis negotiators were on scene talking to the man.

Police were first notified at 1:45 p.m. about a pedestrian in the center median, Lane said. After officers arrived, he fled to the transition ramp.

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Traffic was backed up for miles because of the incident, back to the Caldecott Tunnel. CalTrans provided detours as the situation unfolded.