Police investigate the death of a man near Oak Street and Shipland Drive in Crystal Lake Sunday morning. | Photo: Alex Vucha.

Police are conducting an active investigation and asking the public for information after a man in his 30s was found dead in a Crystal Lake neighborhood on Sunday.

The Crystal Lake Police Department and the Crystal Lake Fire Rescue Department responded around 8:29 a.m. Sunday to Oak Street and Shipland Drive.

Crystal Lake Deputy Police Chief Thomas Kotlowski said someone called 911 after finding an unconscious man south of the intersection.

Officers arrived and located a male subject, approximately 35 years old, with no obvious signs of injury.

Paramedics quickly determined the man was dead at the scene, Kotlowski said.

The McHenry County Coroner’s Office was notified and responded to the scene to assist.

“This case is considered an active investigation. While we are still gathering evidence, we are sure there is no danger to the public as a result of this incident,” Kotlowski said.

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The McHenry County Coroner’s Office did not immediately respond to a request for comment from Lake and McHenry County Scanner.

Anyone who may have information relating to the incident is asked to contact the Crystal Lake Police Department at 815-356-3620.

Anyone with a cell phone can send an anonymous tip to the Crystal Lake Police Department by texting the word CLPDTIP along with the tip information to 847411.