Honolulu police are investigating separate stabbing incidents in Pupukea and the Ala Moana area.
The first incident occurred around 9:30 p.m. Friday when a 59-year-old man was apparently stabbed by another man at a gas station in Pupukea.
The suspect fled the scene and has not yet been identified. The victim was taken to an area hospital in serious condition.
Around 2:10 a.m. on Saturday, a 25-year-old man was stabbed during an argument with another man at the Club Rock-Za strip club on Kapiolani Boulevard.
The victim was taken to an area hospital in serious condition. A suspect was arrested at the scene but later released pending investigation.