A two-car collision Thursday in Tattnall County killed five people and left a child in critical condition, according to Georgia State Patrol Trooper Denney Garner.

The accident happened around 4 p.m. on Highway 144 about a mile outside of Fort Stewart, near Glennville. An Isuzu Trooper, driven by Jose Antonio Robles-Vera, 22, apparently crossed into the path of a woman driving her three grandchildren in a Chevy pickup truck, Garner said.

 The woman took evasive action to keep from getting hit, but the Isuzu veered back into the Chevy driver’s lane, hitting the pickup head on.

Robles-Vera was killed and his passenger, Pedro Juan Robles, was flown by helicopter to Memorial Health University Medical Center in Savannah, where he later was pronounced dead, according to the GSP trooper. Authorities said both men were from St. Simons Island but did not know if they were related.

The driver of the pickup truck, Janis McCurdy of Glennville, and two young passengers — 7-year-old Mollie McCurdy and 2-year-old Spencer McCurdy, both of Townsend — died.

Nine-year-old Turner McCurdy of Townsend survived the crash and was taken to Memorial Health University Medical Center in Savannah, where he is listed in critical condition.

Mollie McCurdy and Turner McCurdy are students at First Christian Academy in Richmond Hill. All three children were Janice McCurdy’s grandchildren.

Authorities said blood samples taken from both drivers showed no evidence that either was intoxicated.

The Associated Press contributed to this article.