An infant was killed and her mother critically injured when their car was stuck by a pickup truck on Kuakini Highway on the Big Island.

The accident occurred at 7:28 p.m. Saturday at the intersection of Kuakini Highway and Lako Street, the fire department said.

The woman, in her 20s, and the infant were taken to Kona Community Hospital, where the baby later died. The woman remained in critical condition yesterday.

The occupants of the truck were uninjured.

As they investigated the accident site, officials rerouted traffic onto Highway 180 and Alii Drive. The cause of the accident was under investigation.