London.Multiple armed police officers have been spotted at the scene while helicopters were seen hovering overhead.Unconfirmed reports say the man was wielding a machete at Bow Church DLR station, not far from Stratford.A man has been arrested, with at least one source on Twitter claiming he attacked another passenger.British Transport Police (BTP) have confirmed the incident this afternoon involved a weapon.The force said in a statement: "We were called to Bow Church DLR station in London at 4pm today following an incident involving a weapon."Officers from BTP and the Met Police are at the scene and enquiries are ongoing.
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