Environmental charity Greenpeace has tweeted this photo of the Shard climbers taking part in a training exercise yesterday. They appear to be using a ladder to climb through a hatch in the roof of a lorry.
The training appears to have been aimed at the first stage of the climb when the protesters emerge from a lorry via a ladder to start the ascent.
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Conservative Ben Bradley admitted his claims were 'wholly untrue and false', and pledged a 'significant' donation to charity.
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It comes as 22 charities signed an open letter vowing to improve safeguarding, and apologising for 'failures' in the sector.