The incident, which is ongoing right now, has seen a 'small group of men' protesting and waving placards in Leeds Road, Bradford, apparently in response to the shooting of Mohammed Yasser Yaqub.
The 28-year-old father of two was shot and killed on the M62 on Monday in a 'pre-planned operation'.
Tonight, the news broke that a suspected firearm has been found in the car which was being driven by the man who police shot and killed.
Five people have been arrested and an IPCC investigation has been opened, which is standard procedure relating to a police shooting.
Leeds Road is closed due to the protest.
West Yorkshire Police have confirmed the incident is legitimate and is taking place right now.
Buses are being diverted due to the protest. The @FirstWestYorks X6 and 72 services are diverting via Sticker Lane, Bowling Back Lane & Wakefield Road due to the demonstration.
MORE TO FOLLOW
Read our original reports on the shooting:
The man was killed on the M62 motorway in Huddersfield - READ THE FULL REPORT ON THE INCIDENT HERE: http://www.yorkshireeveningpost.co.uk/news/crime/police-shoot-man-dead-in-planned-operation-near-m62-in-huddersfield-1-8314443
His family have released a statement saying they are 'distraught' and 'in shock': http://www.yorkshirepost.co.uk/news/family-of-man-shot-dead-by-police-on-m62-issue-statement-1-8315840
And armed police have been outside the man's home today, as seen in this VIDEO: http://www.yorkshireeveningpost.co.uk/news/video-armed-police-gather-outside-home-of-man-shot-dead-on-m62-motorway-1-8315795