HONOLULU (KHON2) — The Honolulu Police Department arrested a 31-year-old woman early Tuesday morning for allegedly stabbing her ex-boyfriend in Waikiki.

The incident happened on Ohua Avenue on June 21, at around 1:10 a.m.

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HPD said the 31-year-old woman assaulted her ex-boyfriend with a knife. The suspect is positively identified and arrested for assault in the second degree.

According to the Honolulu Emergency Medical Services, a 51-year-old man was stabbed multiple times and was transported to the nearest hospital in serious condition.

Honolulu police are investigating.