A 53-year-old woman died Saturday night after she was hit by a car near a Hawaii Belt Road crosswalk in Hilo, Hawaii County police said.

Police said the Hilo woman was on the mauka shoulder of the road fronting a crosswalk near the intersection at Hawaii Belt Road and Pukihae Street in Hilo when she was hit around 9:40 p.m. by a 2005 Kia sedan driving south.

The driver, a 37-year-old Volcano man, and his 3-year-old son were uninjured.

Fire rescue crews took the woman to Hilo Medical Center, where she died at 11:58 p.m.

Police initiated a negligent homicide investigation and ordered an autopsy to determine the exact cause of death. Her name is being withheld pending positive identification and notification of next of kin.

It is unknown at this time if speed, alcohol or drugs were involved.

This is the 10th traffic fatality on the Big Island this year, compared to seven at the same time last year, police said.