OROSI, Calif. - A California man shot his two adult daughters on Monday, killing one and critically injuring the other before apparently committing suicide while his three young grandchildren were in the home, authorities said.

An 8-year-old girl called to report gunfire before dawn, and deputies arrived to find 63-year-old Anthony Alvarez dead from what appeared to be a self-inflicted gunshot wound, the Tulare County Sheriff's Department said in a statement.

Jennifer Kimble, 37, was found dead from multiple gunshot wounds. She was the daughter of Alvarez and the mother of the three children in the home - two boys ages 13 and 11, and the 8-year-old girl.

Kimble's sister Valerie Alvarez, 33, had at least one gunshot wound and was flown to a Fresno hospital in critical condition.

The children were unharmed and reunited with their father, who was at work during the shootings, authorities said.

The shootings occurred in Orosi, a town of about 9,000 people in California's Central Valley about 20 miles southeast of Fresno.