Clayton, Mo., police officer Ryan Dunn wears a black ribbon over his badge to mourn the deaths of the Dallas officers as he and others help secure a scene in Manchester, Mo., after a police officer from Ballwin, Mo., was shot during a confrontation with a man on a street in Ballwin. Authorities say the wounded police officer is hospitalized didn't offer any immediate word about the officer’s medical status. A suspect is in custody, and a handgun has been recovered. (Huy Mach/St. Louis Post-Dispatch via AP)

ST. LOUIS - The Latest on the shooting of a police officer in suburban St. Louis (all times local):

6:30 p.m.

The St. Louis County prosecutor's office says the officer who was critically wounded during a traffic stop is white.

St. Louis County Prosecutor Bob McCulloch on Friday charged 31-year-old Antonio Taylor with three felonies, including assault and weapons charges. He concurred with the police assessment that the shooting was an ambush.

Authorities say the shooting happened earlier Friday after Ballwin officer, who has not been identified, stopped Taylor, who is black, for speeding.

Police say the officer was walking back to his police car to check Taylor's driving status when Taylor ran up behind the officer and fired three times, hitting the officer at least once.

Police say they don't yet have a possible motive in the shooting.

The officer remained hospitalized Friday night.

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4:55 p.m.

A prosecutor says a 31-year-old black man has been charged with assault of a police officer, armed criminal action and a felon in possession in the shooting of a suburban St. Louis officer during a traffic stop.

St. Louis County Prosecutor Bob McCulloch said Friday at a news conference that Antonio Taylor has been charged with the three felonies in the incident, which happened during a traffic stop.

Taylor is being held on $500,000 cash bond and is expected to be arraigned Monday morning.

Authorities have said the officer, who is in critical condition and whose race has not been identified, was ambushed while walking back to his car after an initial conversation.

St. Louis Police Chief Jon Belmar has said Taylor was on probation for a weapons violation in St. Louis and had served time and was paroled in 2015.

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3:30 p.m.

The St. Louis County police chief says the suspect the shooting of a police officer was on probation for a weapons violation in St. Louis.

Chief Jon Belmar said Friday at a news conference that the suspect, who police say shot the officer as he was walking back to his car during a traffic stop, also had been on probation for a stolen vehicle in Oklahoma and was picked up for a firearm violation in California. He was paroled in 2015.

Belmar said that the man likely will be charged in the shooting, which occurred shortly after 11 a.m. Friday in the west St. Louis suburb of Ballwin. Police said three shots were fired and the officer was at least hit once. He is in critical but stable condition in a local hospital.

Authorities did not provide the race or identity of the officer or the suspect.

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3:20 p.m.

The St. Louis County police chief says a suburban St. Louis police officer was "ambushed" by a man in his 30s.

Chief Jon Belmar said Friday at a news conference that the man likely will be charged in the shooting. Authorities did not provide the race of the officer or the suspect.

Ballwin Police Chief Kevin Scott said the investigation is ongoing and that he did not know the motive.

Scott says the officer, who has not been identified, has been one for nine years, two of which with the Ballwin department.

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3:10 p.m.

A suburban St. Louis police chief says a motorist shot an officer at least once as the officer walked back to his car during a traffic stop.

Chief Kevin Scott said Friday at a news conference that the incident was captured on video. The officer is in critical condition, but stable. His identity was not released.

Scott said at least three shots apparently were fired, and the officer was hit at least once.

St. Louis County Police Chief Jon Belmar has told KMOV-TV that a suspect in the Friday morning shooting is in custody and that a gun was recovered.

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This item has been corrected to show that the officer was shot once, but that three shots were fired.

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12:35 p.m.

Authorities say a police officer is hospitalized after being shot during a suburban St. Louis confrontation with a motorist.

St. Louis County Police Chief Jon Belmar didn't offer any immediate word about the medical status of the officer wounded during the shooting shortly after 11 a.m. Friday in Ballwin. But Belmar tells KMOV-TV (http://bit.ly/29VeKKY ) the officer took "a hard hit."

Belmar says a suspect is in custody, and a handgun has been recovered.

Details about what led to the officer's initial interaction with the motorist weren't disclosed. But Belmar says that after the shooting, the suspect sped away but abandoned that car and ran after it was spotted by a St. Louis County officer. The suspect was arrested after a short foot chase.

The wounded officer's name wasn't released.

News from © The Associated Press, 2016