Speaking to the Evening Standard, commuter David Banks said: "There were just a lot of police around, police vans and cars and officers around a skip. The skip was between one of the exits to the railway station and car park itself."
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A shocking undercover investigation films people who claim to be able to find a fake bride and guarantee a UK marriage visa.
Negotiators from London Underground and three unions are meeting at the Euston offices of the concilliation service ACAS.
Clear periods and light winds tonight. Staying warm and muggy. Lows of 17°C.