Ed Davey risked his life to save a woman from an oncoming train, he has revealed.
The Lib Dem interim leader, who is launching his campaign to keep the top job, won a bravery award from the National Humane Society for the 1994 rescue.
He told the Mirror he had seen a woman fall onto train tracks at Clapham Junction, after an altercation with a male partner.
He said: “Everyone else was going 'oh my God!' and I thought someone had better do something.”
Sir Ed was forced to step across electrified lines to get the woman to the opposite platform, after seeing a train heading straight for them.
He said: "I got down on to the rail. I checked her pulse, and she was breathing and I thought, right, I'll pick her up and put her on the platform.
“Suddenly I look up and see these two lights of a train - a non-stop train - were coming round the corner at Clapham Junction.
"And I said: "Stop the train!"
He carefully crossed the electrified rails, placing the woman safely on the opposite platform.
Sir Ed said: “They had stopped the train - but literally two metres from where we'd been standing.”
Sir Ed was commended for his bravery both by the National Humane Society and by the Chief Constable of the British Transport Police.