UPDATE: A San Juan Capistrano man who had been threatening to jump from an overpass on the 73 toll road in Laguna Niguel gave himself up to authorities about 4 a.m. today and was detained, the Orange County Sheriff's Department reported.
The 45-year-old man was taken to a hospital for a mental health evaluation, authorities said.
According to sheriff's spokesman Jim Amormino, the man is married and the father of three young children.
The incident started around 4 p.m Wednesday and disrupted Metrolink service while closing the 73 toll road near Camino Capistrano, said Lt. Gary Strachan of the Orange County Sheriff's Department.
The Sheriff's Department was breaking down the command center this morning, and the toll road should be opened by sunrise, Walsh said.
Metrolink's website says delays were still to be expected this morning.
UPDATE: SEPT. 14, 11:58 P.M.: Metrolink tweeted that trains are still unable to operate between San Juan Capistrano and Laguna Niguel due to police activity in the area. "Expect delays and possible bus bridge in the a.m."
UPDATE: SEPT. 14, 10:42 P.M.: OCSD authorities report they are still at the scene negotiating with the man who is threatening to jump from the 73 tollway overpass in Laguna Niguel.
A 45-year-old man threatening to jump from the 73 tollway overpass at Camino Capistrano in Laguna Niguel was sitting Wednesday night at the edge of a support beam rocking back and forth on his knees with a bottle of Jack Daniels in his hands.
The man was atop the beam, which is 20 feet high and 8 feet wide, and there were two negotiators about 25 feet from him, trying to talk him down.
The saga began about 4 p.m. when the Orange County Sheriff's Department received a call that a man was about to jump from the overpass, authorities said.
"We have a dialogue with him," said Sheriff's Department Lt. Steve Doan at about 8:15 p.m. Wednesday. "We are able to talk down 98 percent of these people."
A crowd of onlookers had gathered outside a nearby gas station and fast-food outlets. Said one, Dennis Clancy, who was visiting from Ireland: "I feel sorry for the bloke."
Metrolink trains were halted in both directions and traffic was congested in and around the area. The on-ramp to the 73 tollway at the 5 freeway was closed, causing delays to the south in San Juan Capistrano.
California Highway Patrol officers and a SWAT team also were there.
Residents alerted Laguna Niguel Patch to the crisis situation Wednesday afternoon. Casey Stark wrote: "One man sitting on edge of support pylon. He is dark-haired with black and white T-shirt. He keeps yelling at police, who are trying to talk him off the edge."
Resident Corey Henson wrote: "Police activity at 73 overpass and train tracks have trains halted at LN station for unknown duration."
—City News Service contributed to this report.