British Transport Police officers attended Waterloo Railway Station, London at around 6.45pm yesterday, following reports of a man seen with a suspected weapon, thought to be a machete.
BTP officers located a 38-year-old man of no fixed abode at the station and he was arrested on suspicion of possession of an offensive weapon.
He is currently in custody.
The incident is not being treated as terror-related.
No one was injured.
