Armed police swarmed Shepherd’s Bush station on Tuesday night (May 12)after reports of a man brandishing a knife.
Police descended on the station just after 9.15pm and carried out a full search of the area, but nobody matching the description was found.
Jemma Sadrugu, who tweeted the incident from her Hibiscus Traveller account, was walking from Westfield at around 9.30pm when she saw the police and road blocked off between the underground entrance and bus station.
She said: “There were at least three police cars plus another two vans with flashing sirens.
“Standing in front of the station was about five guys with heavy artillery, plus at least four regular policemen.
“At this stage the station was still open but there were one or two policemen with guns on the other side of the ticket barriers as well.”
She said the sight of the armed officers came as a shock: “You expect to see regular police, but not these guys with the big guns out and finger on the trigger. They looked very intimidating.
“Usually around the station and high road on Uxbridge Road, opposite the green, [can be] a little dodgy looking, but I have never seen police that heavily armed in the area at all.
“We had no idea what was going on.”
Police enquiries are ongoing.