A third person has died following a small plane crash near Fresno, California, authorities reported Sunday. The woman had been critically injured in the incident that claimed the lives of two children.

A fourth individual, an adult male, remains in critical condition, according to the Fresno County Sheriff’s Office.

The crash occurred just before 2 p.m. on Saturday near the San Joaquin River. Emergency services responded to the scene following the incident.

Fixed-wing, single-engine aircraft were involved in the crash, which resulted in a fireball. The aircraft came to rest on a bluff overlooking the San Joaquin River.

A crashed and burned single-engine plane on a bluff by the San Joaquin River, with first responders investigating.

Details regarding the cause of the crash have not yet been released. Investigations are ongoing by relevant authorities.