(Portland, OR) -- A naked man was arrested Saturday evening in Portland's Waterfront Park for trying to kidnap a seven-year-old girl who was with her family visiting the city. Initially, police didn't have enough officers to respond to reports of a naked man in the park trying to assault people. When he tried to pull the girl from her mother's arms, she pulled back. The girl's father and bystanders punched and hit the suspect. One person sprayed a chemical irritant at him. Police arrived and arrested 31-year-old Daniel Vasey for attempted kidnapping, custodial interference and assault.