Two police officers in Howard County shot and killed a 61-year-old man who authorities said had threatened to kill occupants of his home in Ellicott City on Saturday morning and then confronted the officers with a knife.

The 6:30 a.m. shooting was the second time in four days that members of the county police force fatally shot a man wielding a knife. A 45-year-old man was killed on Wednesday inside a home three miles away from Saturday’s confrontation. Police described both men as suicidal.

In a statement, Howard County police said the 61-year-old man called 911 about 6:30 a.m. to report that “everyone in house would be killed.” Three officers who arrived at the house in the 5000 block of Montgomery Road, also known as Route 103, were confronted by a man standing in his front yard and holding a knife, according to the police statement.

One officer fired a Taser at the man, but he ran back into his house. It was not immediately clear if the man was struck by the weapon, which is designed to stun using electric shocks. Police said the man came back out of the house, again holding a knife. “The officers repeatedly ordered the man to drop the knife, but he continued toward them,” the police statement says.

Two officers fired, and the man was pronounced dead on the scene, the county police said. They said two large knives were found. Police did not immediately identify the man who was killed, nor the officers involved in the shooting. The officers were immediately placed on administrative leave. Howard County police typically identify officers involved in shootings within 24 hours of an incident.

Authorities said the shooting remains under investigation and other details were not made available, including how many shots were fired, where the man was struck and how close he was to the officers when they fired their weapons.

Police said one relative was home at the time of the shooting and was not hurt. “Family members advised police that he had been recently talking about suicide,” the police statement says.

Wednesday’s shooting occurred about 1:30 p.m. in the 7600 block of Coachlight Lane. Police said officers Daniel Young and Lara Bradshaw responded to a call for a man stabbing himself. Police said the officers found Darren Friedman in a bedroom covered in blood with several self-inflicted cuts.

Police said Friedman confronted the officers with a knife and was shot. He died later at a Baltimore hospital.

Howard County police said on Saturday that in addition to this week’s incidents, the department’s officers have shot five people over the past five years, killing two of them. One non-fatal police involved shooting last year involved an exchange of gunfire along a commercial strip of Route 1 in Laurel that left both an officer and a gunman wounded.

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