FALMOUTH, MASS. (WHDH) - Authorities are investigating a crash between a truck and a car in Falmouth that left a 4-year-old with life-threatening injuries.

Officers responding to a reported two-vehicle crash on Route 151 northbound around 9 a.m. Thursday found a sedan and a flatbed delivery truck that had been involved in a crash, according to Falmouth police.

A 4-year-old passenger from the sedan was taken by helicopter to a Boston-area hospital with life-threatening injuries, Falmouth Fire/Rescue said.

The driver of the sedan, a 28-year-old woman, suffered non-life-threatening injuries.

The truck driver refused medical treatment.

The cause of the crash remains under investigation.

This is a developing news story; stay with 7NEWS on-air and online for the latest details.

(Copyright (c) 2020 Sunbeam Television. All Rights Reserved. This material may not be published, broadcast, rewritten, or redistributed.)

Join our Newsletter for the latest news right to your inbox