A Mid-Market officer-involved shooting was a fatal one, NBC Bay Area and Bay City News report.

From the scene, the SFPD has confirmed to the Chronicle that an "officer fired on someone."

News outlets are awaiting SFPD Chief Greg Suhr for more information.

Muni and traffic are closed off around the intersection of Eighth and Market Streets near UN Plaza while, according to the news channels' eyes in the sky, a body lies under a tarp. The Examiner confirms that staff from the Coroner's Office was on the scene.

Market Street between 7th and 9th streets, 8th Street between Market and Mission streets, and Hyde Street between Fulton and Grove streets are also closed.

Update 1:40 p.m.: Twitter engineer McLaren Stanley writes that he "was on the corner of Market and 8th" when he heard "two shots," tweeting the below image:

As Stanley was about 10 yards away, he claims to have seen the following:

That rings with the Chronicle's coverage: They write that "there was some type of scuffle then 2-4 shots."

Update 1:55 p.m.: The SFPD is readying to brief the media, while revealing that two officers were injured but none was shot.

Update 2:10 p.m.: SFPD has briefed the media that during a scuffle making an arrest, one officer lost their gun, and their partner fired on the suspect.

Update 2:30 p.m.: Market Street has reopened.

Update 2:35 p.m.: The Chronicle writes that the victim was a latino man his 20s. He was not identified. Neither were the officers save the detail that they were "senior" and that both were treated at a local hospital, one for facial injuries, one for a knee injury.

It reportedly started like this: A construction worker flagged officers in a police vehicle and reported that the man was throwing bottles into the street.