SARATOGA SPRINGS, N.Y. >> Authorities say they've charged a 43-year-old man with raping a woman after police caught him sexually assaulting her along an upstate New York road.

Police in Saratoga Springs say they received a 911 call around 4:10 a.m. Tuesday reporting a man and woman were in the grass along a road.

Officials when officers arrived on the scene, they found the man sexually assaulting the woman. Police say the officers stopped the attack and took the man into custody. He was later identified as 43-year-old Wilfred Diaz of Whitehall, new York.

Diaz was charged with rape, assault and criminal sexual act. Police say Diaz is registered as a Level 2 sex offender. He's being held without bail. It couldn't be determined if he has a lawyer.

Police say the victim was an acquaintance of Diaz.