BREAKING: Shots Fired At Protest in Dallas; UPDATE: Five Officers Have Died

Update: Watch a live feed here:

Update II: Eyewitness reports indicate that the suspect fired directly upon the police cars during the rally. The suspect may have been witnessed in an alley.

Gunman is reportedly now on the move in downtown Dallas. Holding a rifle and in an alley at one point according to @MSaavedraTV #Breaking

— ron corning (@roncorning) July 8, 2016

Update III (LB): According to an eyewitness at the hospital, one officer arrived with his left arm/shoulder bandaged but was conscious and sitting up. 

Update IV (LB): Fox4 is reporting between three and six officers were injured. 

.@FOX4 is now reporting "3-6 officers injured during shooting" in #Dallas.

— Patrick Svitek (@PatrickSvitek) July 8, 2016

Update IV: One suspect is reportedly in custody and there are "negotiations" taking place with a second suspect.

One person in custody in #Dallas #shooting

— Joel Thomas (@CBS11Joel) July 8, 2016

Update V: One shooter is "neutralized." Three DART officers have been shot.

Three DART officers have been shot in downtown, per Asst VP Communications & Community Engagement for Dallas Area Rapid Transit tells CNN

— Dianne Gallagher (@DianneG) July 8, 2016

Update VI: Dallas Area Rapid Transit is confirming that four officers have been shot, with one killed. The other three have non-life threatening injuries.

Four DART police officers were shot in downtown Dallas. 1 deceased, others not life-threatening. No IDs yet. Updates via twitter.

— dartmedia (@dartmedia) July 8, 2016

Update VII: Three officers, including the DART officer, have been killed, according to Dallas Police Chief David Brown. The other two officers were from the Dallas Police Dept. Ten officers total were shot. Three are in critical condition.

BREAKING: DPD confirms 10 officers shot, 3 dead - 2 in surgery - 3 critical -shot by 2 snipers @wfaachannel8

— David Goins (@dgoins) July 8, 2016

According to Brown, there were two snipers who ambushed from an "elevated position." Contrary to prior reports, apparently no suspects are in custody.

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Statement from @DallasPD Chief David Brown.. @NBCDFW pic.twitter.com/gN4UEW2EvP

— Jocelyn Lockwood (@JocelynNBC5) July 8, 2016

UPDATE: VIII (MV): Matt jumping in here now for updates. The Dallas Police Department have released a photo of a person of interest related to this attack. Police Chief David Brown says that 11 total officers have been shot, three have died, and one civilian has been wounded. Chief Brown also mentioned a bomb threat was also made by the shooters.

UPDATE IX (MV): No suspects are in custody. Four officers have now died.

UPDATE X (MV): Man featured in "person on interest" photo has turned himself into the police. SUB-UPDATE (KP): The person of interest sought is not one of the shooters and turned his firearm, which he was legally and openly carrying during the protest, into police. 

UPDATE XI (KP): A suspicious package is being investigated in downtown Dallas. The Dallas bomb squard is on scene. Police have taken both suspects into custody alive and have declared the threat to the public over. 

Update: pic.twitter.com/ukWSZJeZo3

— Dallas Police Depart (@DallasPD) July 8, 2016

UPDATE XII (KP): Texas Governor Greg Abbott has released a statement.

My statement on tonight's shooting in #Dallas. pic.twitter.com/oXoAJOUCoF

— Greg Abbott (@GregAbbott_TX) July 8, 2016

UPDATE XIII (KP): Police have updated the public for the last time until the morning. They are currently negotiating with a suspect who is not cooperating and is exchanging gun fire with officers. The remaining suspect has also stated there are bombs "all over a parking garage in which he is hiding. Despite earlier reports, Dallas Police Chief David Brown said they are not confident all suspects have been arrested or taken into custody for questioning. He also stated he believes there are at least four suspects involved, one of whom is a woman in custody. It is still unclear if suspects were part of the Black Lives Matter protest. 

"We still don't have a complete comfort level that we have all the suspects," Brown said Thursday night.

#Dallas Mayor Mike Rawlings: "We as a city, we as a country must come together ... Words matter." https://t.co/Qrz2oDezal

— USA TODAY (@USATODAY) July 8, 2016

UPDATE XIV (KP): Three suspects are in custody. ATF and FBI agents are on scene and the FAA has issued a flight restriction over downtown as the situation continues to unfold. The police will give no further updates tonight, more in the morning.

BREAKING: Possibly 4 suspects altogether working as a team in Dallas ambush of police officers according to the Chief.

— Tom Winter (@Tom_Winter) July 8, 2016

.@DPDChief: Three suspects are in custody, one remains in a standoff with officers. Watch the latest: https://t.co/dxAaZyJTHm

— CBS News (@CBSNews) July 8, 2016

UPDATE XV: A fifth police officer has died.

Reports of shots fired Thursday night at an anti-police shooting rally in Dallas. A crowd was seen fleeing the scene and at least two police officers were seen lying motionless on the ground live on television.

According to Fox Affiliate KDFW, two officers were shot. Their conditions are unknown.

(Content warning: Some of these videos contain gunshots.)

BREAKING: Reports of shots fired at Griffin and Lamar in Downtown Dallas during protest march.

— CBSDFW (@CBSDFW) July 8, 2016

#breaking Crowd on the run downtown Dallas. Reports of an officer shot at the protest march. pic.twitter.com/zstZnDIRlm

— Doug Dunbar (@cbs11doug) July 8, 2016

#BREAKING: Our cameras captured several shots ring out during a protest in Downtown Dallas pic.twitter.com/OWOBOOI8Jg

— FOX 4 NEWS (@FOX4) July 8, 2016

Prior to the shooting, the protest was described as "mostly peaceful," with a small contingent of people yelling anti-police slogans.

There is no confirmation of a shooter down or in custody. Dallas police are reporting that the shooter used a rifle and police returned fire with handguns.

This story has been updated and will be updated as information becomes available.