Police arrested a 39-year-old man on suspicion of stabbing the woman based on information provided by witnesses, homicide Lt. Bill Kato said today.

The man was inside the woman’s tent and was covered with blood, police said. However, no weapon has been recovered.

The woman and the man being held by police were acquainted, Kato said.

Witnesses told police the two moved to Ulehawa Beach Park late last week from another beach site on the Wai'anae Coast. They heard the woman and a man arguing for about 15 minutes shortly after she returned to her tent at about 4 a.m. yesterday, said Kato. The woman was later heard screaming at the man and was seen staggering out of her tent shortly before 6 a.m.

The woman walked to Farrington Highway and collapsed on the shoulder of the roadway. It was there that she told witnesses who stabbed her, Kato said. She was pronounced dead at the hospital at 7:25 a.m.

Police tentatively have identified the woman but are waiting for confirmation from the medical examiner’s office.