FILE - This May 25, 2020, file image from a police body camera shows bystanders including Darnella Frazier, third from right…
FILE - This May 25, 2020, image from a police body camera shows bystanders including Darnella Frazier, third from right, recording, as former Minneapolis police Officer Derek Chauvin pressed his knee on George Floyd's neck.

Darnella Frazier, the teenager who videoed George Floyd's murder in Minneapolis last year, said Wednesday that a man killed during a high-speed police chase in the city early Tuesday was her uncle.

Police confirmed that the man, Leneal Lamont Frazier, was not involved in the chase.

"Minneapolis police has cost my whole family a big loss … today has been a day full of heartbreak and sadness," Frazier posted on her Facebook page. 

According to police, a squad car collided with two other vehicles during a high-speed pursuit of a driver linked to a carjacking and multiple robberies.

Police confirmed Wednesday that the driver of one of those vehicles was taken to a hospital, where he later died, but they have not released the name of the victim, The Associated Press reported.

"Another black man lost his life in the hands of the police!" Frazier wrote.

Frazier was given a Pulitzer Prize special citation last month for capturing the murder of Floyd on video. She testified earlier this year in the murder trial of former Officer Derek Chauvin, who was found guilty of murdering Floyd after he kneeled on his neck for over nine minutes last year.

"When I look at George Floyd, I look at my dad. I look at my brothers, I look at my cousins, my uncles, because they are all Black. I look at how that could have been one of them," she told the jury at the time.

Floyd's murder sparked global protests over racial injustice and police brutality. Locally, the Minneapolis Police Department has come under intense scrutiny, with calls to defund the police seriously considered by the city's government over the past year.

The Associated Press contributed to this report.