New York ? Police fired 50 rounds Saturday at a car of unarmed men leaving a bachelor party at a strip club, killing the groom on his wedding day in a shooting that drew a furious outcry from family members and community leaders.

The spray of bullets hit the car 21 times, after the vehicle rammed into an undercover officer and then an unmarked NYPD minivan twice, police said. Police Commissioner Raymond Kelly would not say if the collisions were what prompted police to open fire.

It was too early to say whether the shooting was justified, Kelly said.

Police thought one of the men in the car might have had a gun. But police found no weapons.

“Although it is too early to draw conclusions about this morning’s shootings … we know that the NYPD officers on the scene had reason to believe that an altercation involving a firearm was about to happen and were trying to stop it,” Mayor Michael Bloomberg said in a statement.

Kelly said the incident stemmed from an undercover operation inside the strip club. Seven officers in plain clothes were investigating the Kalua Cabaret, and five were involved in the shooting. The gunfire also hit nearby homes and a train station, though no residents were injured.

A veteran officer fired his weapon 31 times, emptying two full magazines, Kelly said. All the officers carried 9 mm handguns.

The groom, who was driving, was identified as Sean Bell, 23. Joseph Guzman, 31, was in the front seat and was shot at least 11 times. Trent Benefield, 23, who was in the back seat, was hit three times. Both men were taken to Mary Immaculate Hospital. Guzman was listed in critical condition and Benefield was in stable condition.

The Rev. Al Sharpton speaks to the media as family members of the victims of a police shooting, Denise Ford, second from left, the mother of Trent Benefield, and Ebony Guzman, right, the wife of Joseph Guzman, look on outside of Mary Immaculate Hospital in Queens, New York. Three men attending a bachelor party at a club were shot by police officers just after leaving early Saturday morning.

Three officers, including the officer hit by the car, were treated and released. Another detective remained hospitalized for blood pressure, Kelly said.

A grand jury was investigating the incident. Kelly said none of the five veteran officers had ever discharged their weapons in the line of duty. He has not been able to interview the officers because the district attorney must first complete an investigation, he said.

The undercover officers were inside the club to document illicit activity, Kelly said. He said the establishment has a “chronic history of narcotics, prostitution and weapons complaints.”

The shooting drew angry protests from family members and the Rev. Al Sharpton.

“I will stand with this family,” he said. “This stinks. Something about the story being told did not seem right.”

Sharpton said Bell and his fiancee had two children, ages 3 years and 5 months.