Ryan Maye Handy

The Coloradoan

After police broke up a house party near Colorado State University on Saturday night, people tossed bottles and tore down street signs on the south side of campus.

In the coming weeks, Fort Collins police expect to make arrests and potentially charge some people in connection with the Oct. 4 incident, said Fort Collins Police Lt. Jeremy Yonce.

When police came to break up a party off Blevins Court and South Whitcomb Street at 10:50 p.m., they found between 300 and 400 people milling around. When officers approached, some people began throwing bottles, Yonce said.

"The street was just moving," said 18-year-old CSU student Dylan Greenwood, who watched the confrontation from nearby. Greenwood said one girl decided to charge some CSU police officers in a south-side parking lot.

Some people approached officers wielding street signs they had ripped from the ground, but Yonce said they stopped about 50 yards from the officers.

Police did not throw tear gas, although Greenwood and others said they thought they saw some. After their initial contact with the crowd around 11 p.m. Saturday, Fort Collins police backed off and requested mutual aid. Reinforcements arrived at 12:20 a.m., Yonce said. By the time reinforcements arrived on scene, most of the crowded had disbanded.

No one was injured in the incident, Yonce said.

This is the second time this year that police have interceded at a large party on Blevins Court. In early April, a party host called police after a 20-person party became at 200-person mob in the 100 block of Blevins. People lobbed rocks and bottles at officers who came to break up the party seven months ago.

Yonce said police haven't yet confirmed if Saturday night's party was at the same house.

An April 2013 party-turned-riot on campus led to thousands of fines, several court cases and at least one arrest. The party also prompted university officials to change party registration protocol, which now requires that police call party hosts and warn them to disband 20 minutes before officers will arrive to break up the scene.

Fort Collins police joined campus police and Larimer County Sheriff's deputies in trying to control the crowd Saturday. Officers shut off most of the intersections along the south side of campus along Prospect Road, most of which had reopened by 1:30 a.m.

Officers still continued to patrol campus hours after the riot broke up, shining spotlights on empty glass-covered streets and stopping to watch anyone still wandering the campus.

Shards of glass littered the asphalt of Blevins Court. In a nearby parking lot, a pile of bent street signs lie in a heap.