Authorities in the United States are investigating a fatal shooting on Saturday night at a park in downtown Louisville, Kentucky, where demonstrators regularly gather to protest the death of Breonna Taylor.
Reports of shots fired at Jefferson Square Park came in around 9pm (local time), Louisville Metro police said in a statement.
It is understood that Jefferson County Sheriff's Department performed life-saving measures on a male who died at the scene.
Shortly after, police were told of a shooting victim across the street at the Hall of Justice. That person was hospitalised with non-life-threatening injuries.
Video posted on social media appeared to show a man opening fire into the park as people scrambled for cover.
The footage later showed at least one person bleeding profusely on the ground.
Officers cleared the park and police were "trying to gather as much information as possible in order to identify all who were involved in the incident", police said.
No information about arrests, possible suspects and the victims' identities and ages was immediately released.
"I am deeply saddened by the violence that erupted in Jefferson Square Park tonight, where those who have been voicing their concerns have been gathered," Louisville Mayor Greg Fischer said in a statement.
"It is a tragedy that this area of peaceful protest is now a crime scene."
My thanks to the first responders who assisted at the scene. I will have more to say tomorrow, as additional information becomes available. 2/2
— Mayor Greg Fischer (@louisvillemayor) June 28, 2020
Louisville Courier Journal reported last week that "social media posts and a Facebook event acknowledged by police" suggested counter-protesters that include "armed patriot groups" might visit downtown Louisville on Saturday.
"The posts suggest a counter-protest to the ongoing racial justice demonstrations in Jefferson Square Park over the Breonna Taylor shooting," the news outlet reported.
The Mayor warned them to stay away: "We have a simple message for counter-protesters that may be planning on coming to downtown Louisville this weekend: We don’t need you here. Our focus is on facilitating peaceful protests."
Again, we have a simple message for counter-protesters that may be planning on coming to downtown Louisville this weekend: We don’t need you here. Our focus is on facilitating peaceful protests.https://t.co/lTOJlNtn9w
— Mayor Greg Fischer (@louisvillemayor) June 26, 2020
The park has for weeks been the epicentre of protests in the city after the police killings of Ms Taylor and George Floyd.
"Praying for our city," tweeted Kentucky state Rep. Charles Booker of Louisville. The Democrat is running for his party's nomination to challenge Republican Senate leader Mitch McConnell in autumn.
Praying for our city.
— Charles Booker (@Booker4KY) June 28, 2020
Ms Taylor, a 26-year-old black woman, was killed in her Louisville home in March by police who were serving a no-knock warrant.
Protesters have been calling for the officers involved in her death to be charged. One of the officers was recently fired.
Kenneth Walker, Ms Taylor's boyfriend, was originally charged with attempted murder after he fired a shot at one of the officers who came into the home. Mr Walker has said he thought he was defending them from an intruder.
The no-knock search warrant that allows police to enter without first announcing their presence was recently banned by Louisville's Metro Council.