HERMON — A Hermon man was jailed after allegedly striking a sergeant from the St. Lawrence County sheriff’s office in the head with a shovel during an investigation on Tuesday.

St. Lawrence County sheriff’s detectives reportedly charged John F. Woodrow, 43, with aggravated assault upon a police officer, felony.

Deputies were investigating an unrelated matter pertaining to Woodrow’s well-being and mental health status, when Woodrow refused to cooperate with the deputies on the scene and ended up striking Sgt. Matthew Brown with a military type shovel on the head in the doorway of the home, officers said.

This caused Brown and other deputies to retreat and call for backup, deputies said.

Brown was reportedly transported by Hermon Rescue to Canton-Potsdam Hospital for a head wound where he was treated and later released Tuesday evening.

Deputies said that due to the injury of Brown and further actions by Woodrow, deputies and initial responding troopers setup a perimeter around the residence and awaited the arrival of the state police Special Operation Response Team (SORT).

After nine hours of negotiations and utilizing numerous techniques, including the use of hostage negotiators, the incident ended peacefully just after 11:04 p.m.

Woodrow was taken into custody and transported to the sheriff’s office.

He was processed and arraigned in Canton court by Town Justice Michael Morgan and held on $10,000 bail

He is due back in court at a later date.