Authorities: Suspect sexually assaulted woman who was riding her bike in park

Crime Stoppers is offering a $2,500 reward for information leading to the arrest of a suspect responsible for a sexual assault in a Bridgewater Township park.
The incident happened Sunday around 9:07 p.m. in Duke Island Park when police responded to a 911 call reporting a sexual assault.
Upon arrival, officers met with the adult female victim, who reported being sexually assaulted by the unknown male while riding her bike in the park. The victim reported to authorities the male suspect came up behind her when she stopped to use her phone.
The victim stated he held a knife to her throat and asked for her money. After handing over her money, the victim reported the male sexually assaulted her in the nearby bushes and then drove away from the area on a bicycle. 
The victim described the suspect as a Hispanic male, up to 5'6" and 175 lbs. with a medium to stocky build and an olive to dark skin complexion. He was reported to be in his 30s with short black hair wearing a black hood and dark pants. 
Anyone with information relating to the sexual assault is urged to contact the Somerset County Prosecutors Office Sex Crimes Unit at (908) 231-7100 or the Bridgewater Township Police Department at (908) 722-4111.