Multiple police agencies, including the NIPAS SWAT team, respond to the 3200 block of Hunter Path in McHenry after a 911 caller reported he fired shots into the air and falsely reported he killed his mother Friday afternoon. | Photo: Tracy Mathesius

A man was taken into custody after he reported he fired shots and killed his mother, which prompted a major police and SWAT team response in McHenry Friday afternoon.

The McHenry Police Department responded around 4:15 p.m. Friday to the 3200 block of Hunter Path in McHenry for a report of a disturbance and possible shots fired.

Multiple police agencies, including the NIPAS SWAT team, respond to the 3200 block of Hunter Path in McHenry after a 911 caller reported he fired shots into the air and falsely reported he killed his mother Friday afternoon. | Photo: Tracy Mathesius

The police department received an additional call from a subject who wanted police to respond to the home because he had fired a handgun into the air.

The subject, a 40-year-old man, also reported that his mother had been killed, police officials said.

Multiple police agencies, including the NIPAS SWAT team, respond to the 3200 block of Hunter Path in McHenry after a 911 caller reported he fired shots into the air and falsely reported he killed his mother Friday afternoon. | Photo: Nick Rusin

He was inside his residence and refused to exit when law enforcement arrived.

The McHenry Police Department, assisted by the McHenry County Sheriff’s Office and other police agencies, established a perimeter around the house.

Multiple police agencies, including the NIPAS SWAT team, respond to the 3200 block of Hunter Path in McHenry after a 911 caller reported he fired shots into the air and falsely reported he killed his mother Friday afternoon. | Photo: Nick Rusin

Information received indicated there were possibly additional armed subjects in the residence, which was later determined to be false, police officials said.

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The McHenry Police Department requested the assistance of the Northern Illinois Police Alarm System (NIPAS) Emergency Services Team (EST).

Multiple police agencies, including the NIPAS SWAT team, respond to the 3200 block of Hunter Path in McHenry after a 911 caller reported he fired shots into the air and falsely reported he killed his mother Friday afternoon. | Photo: Tracy Mathesius

NIPAS is a joint venture of suburban municipal police agencies to provide mutual aid during dangerous situations.

The McHenry Police Department has been a long-time member of NIPAS.

Multiple police agencies, including the NIPAS SWAT team, respond to the 3200 block of Hunter Path in McHenry after a 911 caller reported he fired shots into the air and falsely reported he killed his mother Friday afternoon. | Photo: Nick Rusin

A preliminary investigation determined the man may have been suffering from a mental health crisis, police officials said.

Officers were unable to determine if there were any other occupants in the residence or if medical services were needed.

Multiple police agencies, including the NIPAS SWAT team, respond to the 3200 block of Hunter Path in McHenry after a 911 caller reported he fired shots into the air and falsely reported he killed his mother Friday afternoon. | Photo: Tracy Mathesius

A two-hour standoff ensued before the man voluntarily exited the residence and was taken into custody without incident.

He was transported to Northwestern Medicine Hospital in McHenry for treatment.

Multiple police agencies, including the NIPAS SWAT team, respond to the 3200 block of Hunter Path in McHenry after a 911 caller reported he fired shots into the air and falsely reported he killed his mother Friday afternoon. | Photo: Tracy Mathesius

Police said a handgun was collected at the scene and placed into evidence.

McHenry Deputy Police Chief Thomas Walsh said it turned out that no one had been shot and no one else besides the man was inside the residence.

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Multiple police agencies, including the NIPAS SWAT team, respond to the 3200 block of Hunter Path in McHenry after a 911 caller reported he fired shots into the air and falsely reported he killed his mother Friday afternoon. | Photo: Nick Rusin

Criminal charges are possible as the incident remains under active investigation.

Walsh said it is unclear yet whether shots were fired at the home and the scene is still being processed.

Multiple police agencies, including the NIPAS SWAT team, respond to the 3200 block of Hunter Path in McHenry after a 911 caller reported he fired shots into the air and falsely reported he killed his mother Friday afternoon. | Photo: Tracy Mathesius

The McHenry Police Department thanked the community for its patience during the incident.

“While the heavy police presence may be alarming to some, it is to ensure the safety of the community and the responding officers.”

Multiple police agencies, including the NIPAS SWAT team, respond to the 3200 block of Hunter Path in McHenry after a 911 caller reported he fired shots into the air and falsely reported he killed his mother Friday afternoon. | Photo: Nick Rusin

Anyone with information about the investigation is asked to contact the Criminal Investigation Division of the McHenry Police Department at 815-363-2599.

Those wishing to pass along anonymous information are encouraged to call the McHenry Police Tip Line at 815-363-2124. All calls made to the tip line are anonymous.