New York: Two men have been arrested after an 18-year-old woman was allegedly gang raped while walking in the park with her dad.
Police say the pair voluntarily handed themselves in on Sunday evening, while two others had been apprehended and another was at large.
The four in custody are aged between 14 and 17 and charges were pending, according to a police statement.
Officers said that the five men took turns raping the teenager 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 before the men took turns in assaulting the woman, police said.
In a statement on Sunday, police said the father approached a patrol car on the street to report the attack.
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 allowed home, police said.
Police released surveillance video taken nearby that they said showed the five suspects before the attack.
The video depicts a group of black men in jackets and sweatshirts talking and laughing inside the store.
A police spokesman confirmed in an email 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.
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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.
"Every New Yorker in every neighborhood deserves to feel safe and protected, and we will not stop until the perpetrators of this disturbing attack are held accountable for their actions."
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% last year and by 5.8% 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% last year.