One suspect has been arrested in Monday’s shooting of two police officers in Brooklyn, leading investigators to focus a citywide manhunt on two at-large felons linked to the crime.

A career criminal, LeeWoods, 29, was charged with attempted murder in the first degree, aggravated assault of a police officer, criminal possession of a weapon, and three lesser charges, police said.

During the interrogation of Woods, who was brought in for questioning on the day of the shooting, police narrowed down the manhunt to Dexter Bostic, 34, and Robert Ellis, 34, both criminals with lengthy rap sheets, police said.

As police scoured the city in search of the suspects, the bounty for information leading to the whereabouts of Bostic and Ellis skyrocketed to $64,000, a number that will likely grow with a proposed donation of $25,000 from the Patrolmen’s Benevolent Association.

Commissioner Raymond Kelly said hundreds of city investigators are working on the case.

Detectives in the warrant squad brought in for questioning wanted criminals who may have been connected to the suspects; police gang squads made rounds interrogating known members of criminal organizations, and the department’s major case squad focused extra manpower on finding the two convicted felons, police said.

Police picked up Woods on Monday at the home of his girlfriend, Nicole Bostic, at 1430 Gateway Boulevard in the Far Rockaway section of Queens, police said. Nicole Bostic is the sister of one of the wanted suspects, police said. The three suspects are all from Far Rockaway, a police source said.

Six hours after the shooting the Bureau of Alcohol, Tobacco, and Firearms discovered that the three guns confiscated inside the abandoned vehicle from which the suspects fled the scene of the gunfight had been purchased in southern states, a spokesman for the bureau, Joseph Green said.

A task force made up of federal, state, and local law enforcement officials was immediately dispatched to three southern states that were not identified, in hopes of finding a connection to the suspects, Mr. Green said.

As the investigation intensified, Officer Russel Timoshenko, who was shot two times in the face during the Brooklyn gunfight, was in grave condition yesterday at Kings County Hospital in Brooklyn.

Friends, family members, and a large contingent of officers from the 71st Precinct, where Officer Timoshenko has been stationed for about a year, were by his side and trying their best to hold out hope.

“It’s a somber mood in the halls of this hospital,” Mr. Kelly said during a visit to the hospital yesterday afternoon. “The family, of course, are very distraught.”

The casings of two .45 caliber bullets were found at the scene of the gun battle on the same side of the street where Officer Timoshenko was shot, leading investigators to believe that the man who shot the officer wielded the .45 caliber revolver that was found yesterday in an alleyway near where the suspects abandoned their stolen sport-utility vehicle, police said.

Inside the abandoned vehicle, which was left on the corner of Lefferts and Kingston avenues in the Crown Heights section of Brooklyn, were a 9-millimeter handgun and five corresponding shells, which point to another gunmen unloading five rounds at Officer Herman Yan, police said. Of the five rounds, only two connected with Officer Yan, hitting him in the arm and bulletproof vest, police said.

Officer Yan, whose life was likely saved by the vest that shielded a bullet from connecting with his chest, was released from Kings County Hospital yesterday afternoon.

While Woods is being charged with attempted murder, police department officials refused yesterday to divulge if he was one of the two gunmen who shot at the officers. Officials said the information wouldn’t be available until the Brooklyn district attorney releases the charges in court papers, which will likely become public record today.