Police have opened a negligent homicide investigation following the death of a 56-year-old woman who was hit by a car over the weekend while crossing King Street near Keeaumoku Street.

The suspect, a 25-year-old man, was arrested Saturday following the 1 p.m. incident. The woman, who has not been identified, was taken in critical condition to a hospital where she died Sunday.

The suspect was later released while police continued to investigate the death as a negligent homicide case.

The accident marked Oahu’s 18th traffic death this year, compared with 19 at the same time a year ago.

Man arrested in theft of officer’s car

Police on Thursday arrested a 25-year-old Makakilo man who was allegedly driving a car stolen from a police officer.

Police had been searching for the officer’s personal car that was stolen in Makiki on Tuesday, with the officer’s rifle, Taser and other police equipment inside, a Honolulu Police Department spokeswoman said.

Police spotted the suspect driving the car in Makakilo and arrested him at 12:15 p.m. on suspicion of unauthorized control of a motor vehicle, police said.

Honolulu Police Department policy requires that officers exercise extreme care and caution in storing weapons and other equipment, the spokeswoman said. HPD is looking into the incident.