UPDATED (Tuesday, April 30 at 9:31 a.m. PT) — Portland Police Bureau officers shot and killed a suspect in a stabbing case inside a residence in East Portland early Monday.

The incident took place around 4:14 a.m. on the 131st block of SE Center Street.

Four victims — three males and one female — were stabbed and taken to area hospitals, police said. Police have not released their identities. Their conditions were not known at the time of publishing, but police said the victims received “substantial injuries from stab wounds.” An infant was in the home and was unharmed, police said.

The suspect, an adult male, was pronounced dead at the scene.

When officers arrived, they found two people outside a residence who had been stabbed. Police said the adult female victim was being held at knifepoint inside the home when they arrived. A 1-and-a-half-year-old infant was also in the home.

“Officers engaged the suspect inside the residence and an officer-involved shooting occurred,” the Portland Police Bureau said in a statement.

The three officers involved in the shooting used less lethal rounds as well as lethal force. Late Monday, the bureau released the names of the officers involved.

Officer Michael Gonzalez, a two-year veteran of the force and Sgt. James Mooney, a 10-year veteran, “used lethal force during this incident when confronting the suspect,” PPB said in a release. Officer Aaron Rizzo, who has been with PPB for more than two years, used less lethal force, according to the agency.

“Based upon preliminary information, it appears our officers acted quickly and heroically to save lives,” said PPB Chief Danielle Outlaw. “We will learn more details as the investigation unfolds and appreciate the community’s patience as we gather the details of what transpired.”

The police officers are on paid administrative leave until the completion of the investigation and the grand jury process.