NORRISTOWN, Pa. (CBS) — A reward is being offered for information leading to the arrest of the suspect behind a sexual assault in a Montgomery County park.

The Montgomery County District Attorney’s Office and the Citizens Crime Commission of the Delaware Valley are offering a $10,000 reward for information leading to the arrest of the person who sexually assaulted at gunpoint a 19-year-old woman who was running in Norristown Farm Park on Tuesday morning.

READ MORE: 2022 Wawa Welcome America Festival Guide: Road Closures, Public Transportation Information

The woman called 911 and was transported to Einstein Medical Center.

Police: Day Care Center Owner Sexually Assaults Two 5-Year-Old Children

She is out of the hospital and at home recovering.

“This shouldn’t happen and everyone I know in the community is just devastated,” said Ryan Graham, leader of the Norristown Running Club.

A spokeswoman for the Montgomery County District Attorney’s Office said police were still following up on leads. In the park Wednesday, public safety crews and police officers made their presence known.

READ MORE: CBS3 SummerFest: Catch The Ocean Breeze Without Sitting On Sand With Atlantic City Cruises

Graham said for those worried while the suspect is still at large, particularly runners, he encourages them to use groups like his as a resource to find jogging buddies.

“Everyone is welcome,” he said. “I started this group to bring people together, but right now it means more with the crime in Norristown. It’s really just about being safe and having fun.”

Police: Woman Allegedly Abducted, Robbed By Possible Lyft Driver

The club still ran Wednesday night, a day after the attack. It is working with police on a support run for the survivor of the sexual assault.

The suspect is described as as black man wearing a black mask, or a dark-hooded sweatshirt, and armed with a handgun.

Detectives are asking anyone who may have witnessed this suspect entering or exiting the park to call East Norriton Police at 610-272-0748, West Norriton Police at 610-630-1701 or Montgomery County Detectives at 610-278-3368.

MORE NEWS: CBS3's SummerFest Checks Out To Legendary Atlantic City Boardwalk Hall

CBS3’s Henry Rosoff contributed to the report.