He followed her down Weeks Avenue around 11 a.m. and forced her into an alleyway at gunpoint, an NYPD spokesperson said. The man sexually assaulted the girl.
The suspect fled the area and the panicked girl screamed out for help. She was transported to an area hospital.
Neighbors say they are shocked that it happened and now worried about sending their kids to the nearby store and park, in an area that they say is usually considered a safe place.
No arrests have been made and no description was immediately available of the perpetrator.
Submit tips to police by calling Crime Stoppers at 1-800-577-TIPS (8477), visiting www.nypdcrimestoppers.com, or texting 274637 (CRIMES) then entering TIP577. Spanish-speaking callers are asked to dial 1-888-57-PISTA (74782).