A police negotiator Wednesday afternoon was able to talk a young man safely down from the top of one of Six Flags Discovery Kingdom”s tallest roller coasters , from which he may have intended to jump, public safety officials said.

Firefighters and armed police officers converged on the park at about 12:30 p.m. responding to reports of someone threatening to commit suicide by jumping off the 150-foot-tall Medusa roller coaster.

With the Vallejo park closed on weekdays during this part of the season, only employees should have been inside. It was not immediately known if the man, whom police did not immediately identify, was an employee, park spokeswoman Nancy Chan said.

Police said the man, who looked to be in his 20s or 30s, appeared intoxicated.

“An intoxicated subject parked in the employee lot and breached the fence, but he didn”t seem to be too serious about jumping,” Sgt. Herman Robinson said. “A hostage negotiator talked him into coming down, and he came right down and has been very cooperative.”

Early reports suggested the man was carrying a bag, but Vallejo Fire Dept. Capt. Cliff Campbell said that after the man came down, officials were sent up to check for it and for any damage to the ride. Police said nothing was found.

“There was no bag up there, and we didn”t see one fall,” Lt. Abel Tenorio said.

The man was taken to a local hospital by ambulance to be cleared medically, Campbell said.

The episode was over and public safety personnel started clearing out by about 1:30 p.m.

Chan said park officials are not sure how the man was able to gain access to the “heavily fortified” park.