Two of five men suspected of raping a woman at a Brooklyn playground have turned themselves in on Sunday evening (local time), while two others have been apprehended and one is still at large.
The four in custody ranged in age from 14 to 17 and charges were pending, police say.
They said that the five men took turns raping the 18-year-old woman at the playground operated by the New York City Parks Department in the Brownsville section of Brooklyn just after 9pm on Thursday. One man pointed a gun at the father and told him to leave, police said.
After the father left, the males each assaulted the woman, police said.
In a statement on Sunday, police said the father approached a patrol car on the street to report the assaults. Officers went to the scene immediately, but the men had fled, said the statement from Stephen Davis, deputy commissioner for public information.
"There was no delay in the police response," Davis said.
"There were no 911 calls associated with the attack, contrary to media reports."
The woman was taken by ambulance to a hospital, treated and released, police said.
Police released surveillance video that they said showed the five suspects before the attack. It depicts a group of black men in jackets and sweatshirts talking and laughing inside a store.
A police spokesman confirmed that two of the suspects turned themselves in on Sunday. A statement issued by the department said two others had been apprehended and the fifth suspect was still at large.
New York Mayor Bill de Blasio on Sunday denounced the rape, pledging police would work to swiftly apprehend the suspects.
"We will take every step possible to find and swiftly prosecute the assailants of this vicious crime," de Blasio said in a statement.
De Blasio and his police commissioner, Bill Bratton, have faced criticism over the perception that major crime is rising in America's most populous city.
Major crimes reported dropped 1.7 percent last year and by 5.8 percent since de Blasio took office two years ago. But some categories have increased, according to a report issued earlier this month. Rapes were up 6.3 percent last year.