The Fairfield Glade (TN) Police Department reports that Officer Jerry Singleton died Tuesday, Dec. 31 while on duty of apparent natural causes.
Officer George Moskowitz was on duty when he suffered the medical emergency at the Fairfax City Police headquarters, according to the department.
An officer with the Ridley Township (PA) Police Department was found dead in his patrol vehicle on Saturday night in Delaware County.
Officer Ken Foley, 57, was found unresponsive in his patrol vehicle after dispatch was unable to contact him via radio.
"It is with great sorrow and significant grief that the Navajo Police Department announces the passing of Police Sergeant Lamar Martin," Phillip Francisco, Chief of Police Navajo Police Department, said on Facebook.
According to Tucson Sector Border Patrol, Agent Robert Hotten, 44, was located by fellow agents near Mount Washington, south of Patagonia.
Officer Anthony Neri collapsed during a training exercise on Monday evening.
Deputy Sheriff II Spencer Englett, 29, suffered a "traumatic medical event" during training and collapsed, the sheriff's office said on Facebook.
The Miami Beach (FL) Police Department issued a statement on Twitter on Wednesday announcing the sudden death of Detective Larry Marrero, a 28-year veteran of the department.
The Virginia Beach Police Department announced the passing of Master Police Officer Kelvin Bailey, who died of an apparent medical emergency early in the morning on Saturday.