By Jim Melwert

PHILADELPHIA (CBS) — A reminder to parents after separate incidents at the same Bucks County park resulted in two arrests.

Twenty-one-year-old Nicholas Fischer of Warrington was arrested on Feb. 17 for a late January sexual assault of a 13-year-old at Pat Livezey Park in Solebury Township, police say.

(credit: Bucks County DA)

(credit: Bucks County DA)

This week, 29-year-old Saul Nathan Barson, of Lambertville, was also arrested for sexually assaulting a 13-year-old at the same park, according to authorities.

Investigators say both men made initial contact online.

Solebury Township Police Chief Dominick Bellizzie says parents need to know what their kids are up to when they’re online.

“Predators are out there, they will prey on a child, talk him or her into a variety of things, so it’s very dangerous.”

Chief Bellizzie recommends parents visit the website,

Both men are facing involuntary deviate sexual intercourse, statutory sexual assault and related charges.

They are both free on bail, with preliminary hearings scheduled for April 3.