A 34-year-old man was arrested in connection with the stabbing of a 28-year-old Kalihi woman and her two young children in their home at a Kalihi public housing complex.

Police said the man who has been convicted of some minor violent crimes turned himself in at the main police station and was arrested on suspicion of three counts of first-degree attempted murder and one count of first-degree burglary about 4:15 p.m., some 11 hours after the stabbings. His relationship with the three victims was not available.

A 6-year-old boy, an 8-year-old girl and the 28-year-old woman were stabbed multiple times and taken in serious condition to a hospital, said Emergency Services Department spokes-woman Shayne Enright.

“We believe the suspect knew the victims,” said police spokes-woman Michelle Yu, who added she could not say what their relationship was. Nor would she provide a description of the man.

The triple-victim stabbing is highly unusual in Hono-lulu, where officials could not recall a previous incident in which young children were stabbed.

The first-degree attempted murder case comes 24 hours after a double killing, also in Kalihi, which police say was apparently not a random shooting, Yu said. No suspects have been arrested in the shootings.

According to the Hawaii Criminal Justice Data Center, the suspect in the stabbings was convicted of misdemeanor harassment, violating a temporary restraining order, assault and abuse of a household member.