Philadelphia police have arrested one of three suspects in the videotaped beating of a city park ranger trying to enforce a no-skateboarding rule.

The beating occurred Friday at Love Park, home to a Robert Indiana LOVE sculpture and a one-time skateboarding mecca featured in a video game.

Police didn't immediately identify the suspect arrested Monday.

Police say one 19-year-old skateboarder punched the ranger in the face after refusing a request to leave.

An onlooker's video also appears to show one suspect spitting at and kicking the ranger while he was on the ground. Police say a second suspect taunted the ranger and a third videotaped the incident.

A man who said he was one of the three participants told WPVI-TV that he lost his cool and was sorry.

Authorities say the ranger's injuries were minor.