The riders on three or four ATVs are arguing with other park patrons at Trestle Park in Byron and otherwise giving them a hard time. There is reportedly an assault going on, too. "A group of Hispanics" approached and joined in the goings on. Law enforcement is on scene. A responder there says "Sounds like it's starting to heat up again."
UPDATE 8:53 p.m.: Some responders indicate having difficulty finding the location. It's "by the fishing park, down the trail, over the steel bridge, 1/4 mile to the pond where there's a mowed field and picnic area." Subsequently, responders told dispatchers things had "settled down some" and that one suspect is still on scene and another one left the area.