RAIL services on the main route into Sheffield rail station were halted for almost four hours after a person stood on a bridge above the line and threatened to jump.
A Network Rail spokeswoman said one service was cancelled, five partially cancelled and seven were delayed or diverted during the late night incident.
Alternative transport including taxis was laid on for dozens of stranded passengers who had been kept waiting on the station platform.
South Yorkshire Police negotiators were called to the Charlotte Road bridge, off Queen’s Road, at about 10.20pm on Friday and did not manage to talk the person down from the parapet until 2.10am on Saturday.
A Network Rail spokeswoman said: “The incident caused substantial disruption.”