A 22-year-old Southampton man faces rape and endangerment charges after a hospital reported the sexual assault of an underage girl, police said.

Lester D. Pettaway was charged with second-degree rape and endangering the welfare of a child after his arrest Wednesday at 10:06 a.m. -- little more than seven hours after the case was reported to Southampton Village Police, authorities said.

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Pettaway was arraigned in Southampton Village Justice Court on Thursday and ordered remanded to Suffolk County Jail in lieu of $500,000 cash bail or bond.

Court records indicate he already was awaiting sentencing after pleading guilty to third-degree robbery in an unrelated case that included an assault and weapons charge.

Police said that investigators received a phone call from Southampton Hospital at 2:41 a.m. Wednesday, reporting the sexual assault of a 14-year-old girl. The girl's identity was not released because she is a minor and because she is the victim of an alleged sexual assault.

Police said Pettaway "allegedly engaged in a sexual relation[ship]" with the girl, but did not provide a time frame for that relationship.

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The age of consent in New York is 17 years old.