A man groped a proselytizer as they prayed together in a Fontana park, police officials said.

The 18-year-old woman walked up to the man at about 10:30 a.m. Monday, Sept. 22, at Jack Bulik Park and invited him to her church, a Fontana Police news release stated.

The two decided to sit on a park bench and pray together. While the woman had her eyes closed, the suspect began touching her. The victim opened her eyes and discovered the man had pulled down his pants, the release stated.

The victim dialed 911 and started to run away, but the man caught her, pinned her down and threatened to hurt her if she did not hang up. The victim hung up, but then she was able to break free and run away.

The man chased the victim until she reached another person. The woman then called 911, the release stated.

The suspect was described as a Hispanic man about 19 years old, 5-foot-8, thin build with brown eyes and brown hair. He was last seen in a thick black-and-white plaid long-sleeved shirt and black shorts. He has a rosary tattoo on his left hand with a cross tattoo on his chest.

Officials asked anybody with information to call the anonymous tip line at 909-356-8477.

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