We've received word of an unfolding incident near the intersection of Market & Jones.

#BREAKING: @SFPD in standoff with man who may have altered mental status and possible weapon on 200 block of Jones in the Tenderloin.

— ABC7 News (@abc7newsbayarea) July 6, 2016

A video posted to Instagram shows the tense scene, as police officer with weapons drawn face a shirtless man on the sidewalk. 

A video posted by Munch Majorz (@munch_majorz415) on Jul 6, 2016 at 2:16pm PDT

Street closures for both pedestrians and street traffic have been put into effect.

#SFPD Activity in Area of Market St/7th St. Street Closure for Both Veh/Ped. Jones St, McAllister St, 7th St, Market St Affected. Avoid Area

— San Francisco Police (@SFPD) July 6, 2016

Update, 2:55pm: The SFPD reports that a "possible armed suspect" has been contained, and that negotiations are in progress.

Possible Armed Suspect Contained in the Area. Negotiation in Progress. Please Stay Away From This Area. #SFPD

— San Francisco Police (@SFPD) July 6, 2016

The Examiner's Joe Fitz Rodriguez has a video from the scene:

VIDEO: #SFPD officers crouched by car, top of armored vehicle, during negotiations w/ allegedly armed man pic.twitter.com/4d7OlbLIFq

— Joe Fitz Rodriguez (@FitzTheReporter) July 6, 2016

An aerial view shows the suspect on the ground near the Hibernia Bank.

.@SFPD: possible armed suspect at Jones & McAllister, negotiation in process. Avoid area https://t.co/dwSP0Fo8zY pic.twitter.com/kgPaCGfFr4

— KTVU (@KTVU) July 6, 2016

We'll update this story as we get more information.

Update, 4:23pm: According to KTVU, SFPD spokeswoman Grace Gatpandan confirmed that police used a beanbag round on the suspect. "Officers will stay on the scene as long as possible to take this person into custody," she said. 

The standoff continues to wear on, and the suspect is on the ground, his hands beneath him. Here's a view from the scene: 

Update 5:15pm SFPD reports via Twitter that it has deployed more bean bags and a flash bang grenade in an attempt to resolve the situation.

#SFPD has deployed bean bag rounds & flash bang in an attempt to prevent suspect's escape and to resolve the situation. Please avoid area.

— San Francisco Police (@SFPD) July 7, 2016

Update, 6:07pm: The suspect is in custody, and the police have recovered his firearm. 

Suspect in custody and is being treated by medical personnel. Suspect's gun was recovered. #SFPD

— San Francisco Police (@SFPD) July 7, 2016

Update, 6:20pm Addressing the media, Chief of Police Toney Chaplin said the suspect was detained after four hours and transported to the hospital with injuries caused by the non-lethal weapons deployed.

During the standoff, Chaplin said the suspect was on the ground, often with his hands in his pockets, with a gun as well as extra ammunition. While on the ground, he told the police that he did not want to go to prison and wanted the police to take his life.

To de-escalate the situation, the SFPD created time and space, Chaplin said, which allowed officers trained in crisis intervention and negotiation time to arrive on the scene and gave the suspect time to "calm down, think and have a second thought."

The department was also able to relay messages from family members on the scene, a tactic used to "reconnect" suspects in these types of situations with "something special," Chaplin explained.

"We would have stayed out here until tomorrow if we had to," he told the press.

Chaplin did not disclose the suspect's identity or the specific injuries he suffered, but did note that the suspect was hit with projectiles only when he threatened to hurt himself.