There has been a pedestrian fatality at Harvester Rd. and Appleby Line in Burlington where a protest was taking place.
Halton Police are reporting that their Collision Reconstruction Unit will be on scene for several hours while they conduct an investigation.
The pedestrain has been identified as an animal rights activist, according to a protester on the scene.
Anita Krajnc, co-founder of the group Toronto Pig Save, says the woman was one of a handful of activists holding vigil outside a pork processing plant on Friday.
Toronto Pig Save regularly holds ``vigils'' outside the facility, and on hot days activists will feed water to the pigs as they're taken to slaughter.
The group drew international headlines in 2015 when Krajnc was arrested while giving water to the pigs on a hot day.
She was later found not guilty of criminal mischief.
Police are asking motorists to kindly avoid the area.