Police investigate after two women were attacked by a man on the Ridgefield Trace trail in Crystal Lake Tuesday evening | Photo by Alex Vucha.

Police called the hammer attack on two women on a Crystal Lake trail Tuesday evening an ‘isolated incident’ and said the suspect remains at large.

The McHenry County Conservation District Police Department and Crystal Lake Fire Rescue responded around 5:15 p.m. Tuesday to the Ridgefield Trace walking and bike trail near Crystal Ridge Drive and Oak Street in Crystal Lake for a 911 call about a battery.

A witness said that a man on a bike attacked a woman with a hammer and another woman, who tried to intervene, was also beaten by the man.

The two women were transported to Northwestern Medicine McHenry Hospital with injuries that are believed to be non-life-threatening, police said. They have since been released from the hospital.

“This was an isolated incident and something like this has never occurred before on the Conservation District’s trail system or within its conservation areas,” the McHenry County Conservation District said Wednesday afternoon.

Police said that they have no new information as of Wednesday and the investigation is ongoing. Police continue to patrol the area and follow up on leads, authorities said.

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The suspect is described as a Hispanic or Filipino man in his mid-50s, 5-foot-7, clean-shaven, stocky build, wearing a Green Bay Packers hat, forest green sweatshirt and dirty jeans.

The McHenry County Sheriff’s Office, McHenry County College Police Department and Crystal Lake Police Department assisted during the call.

Ridgefield Trace is a 7 ½ mile trail that extends from Woodstock to Crystal Lake. Police encourage all citizens to be aware of their surroundings and report suspicious behavior.

Anyone that may have been in the area, witnessed any suspicious behavior along the trail or has any information about a person that fits the suspect description is asked to report it to authorities.

Contact the McHenry County Conservation District Police Department at 815-338-2144 or the McHenry County Sheriff’s Office (815) 338-2144 with any information.