File Photo – Antioch Police Department | Photo: Woo-Sung Shim / Lake and McHenry County Scanner

A major police response was sent and a suspect with a rifle was arrested after over 300 people attending a party refused to disperse and became unruly in Antioch.

The Antioch Police Department responded around 10 p.m. Saturday to the 200 block of Ida Avenue in Antioch for a loud noise complaint.

Officers were met by a crowd of more than 300 people at a house party, according to police officials.

The partygoers, who police said primarily appeared to have come from outside of Antioch, initially refused to disperse.

They created an unruly scene throughout the neighborhood, police said.

Mutual aid from over a dozen other neighboring police agencies was called to assist the Antioch Police Department.

It took over four hours for the crowd to fully disperse from the area.

A 23-year-old man was arrested after officers witnessed him strike another vehicle and try to drive away.

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They found him in possession of a loaded rifle, prosecutors said.

Antioch Police Chief Geoffrey Guttschow said more details would be released Monday.

Guttschow said it is “unfortunate” that this type of incident has become more common throughout the suburban Chicagoland area and is impacting many Lake County communities, including Antioch.

“We are dedicated to maintaining the safety of our residents,” said Guttschow. “Crimes like this, especially that involve illegal firearms, will not be tolerated.”

Anyone with any additional information related to the incident, including those with security camera video or who may have been the victim of an unreported crime, should call the Antioch Police Department at 847-270-9111 or email