KAILUA — Speed, alcohol and drugs may have contributed to a fatal accident yesterday morning in which a car collided with a large truck near Kalaheo High School, police said.

A passenger in the car, a woman who appeared to be in her 40s, was pronounced dead at Castle Medical Center following the 7:08 a.m. crash at the intersection of Mokapu Saddle Road and Kapa'a Quarry Road.

The woman was riding in the front seat of a 1991 Toyota sedan traveling on Mokapu Saddle Road toward Kailua. Police said the driver, a 44-year-old Honolulu man, failed to stop at a red light at the intersection of Kapa'a Quarry Road and collided with a 1997 Peterbilt semi-truck turning left from Kapa'a Quarry Road onto Mokapu Saddle Road.

The woman suffered injuries to her head, legs, and torso, police said. Bryan Cheplic, spokesman for the city Emergency Services Department, said the driver of the Toyota was taken to The Queen's Medical Center in serious condition.

The driver of the car suffered injuries to his torso, police said.

Police said the man may have been under the influence of alcohol and drugs and was speeding when he ran the red light.

The death was the 40th traffic fatality on O'ahu this year.

Reach Peter Boylan at pboylan@honoluluadvertiser.com.