Honolulu police officers shot and seriously injured an 18-year-old man at a Waipahu home Sunday night as they were responding to a domestic incident.

Emergency Medical Services said paramedics were called to a Aniani Place address at about 7:25 p.m. and treated a man, 18, for a gunshot wound to the body and another man, 23, for injuries from an apparent assault. Both men were taken to a hospital in serious condition.

“While responding to a family argument on Aniani Place, officers encountered and shot an armed male who was attacking another male,” according to a Honolulu Police Department social media post. “The armed male was treated at the scene and transported to a hospital in serious condition.”

In an updated post this morning, police said the 18-year-old has been arrested for suspicion of second-degree attempted murder.

”In addition to the criminal investigation, an administrative investigation has been initiated in accordance with department policy,” HPD said.