A Florida man killed himself and two of his children in their home just west of Port Orange authorities said. A third child was injured and is in critical condition at an area hospital, according to the Volusia County Sheriff’s Office.

It happened around 5 a.m. Friday along Jackson Lane inside the Spruce Creek Farms subdivision.
The Volusia County Sheriff's Office said it started as a domestic argument between David Mohney, 52, and his wife, 48-year-old Cynthia Mohney. She fled to a neighbor's house, saying he threatened her with a gun.
A short time later, gunshots rang out.
Deputies said Mohney shot his children, Lauren Mohney, 9, David Mohney, 11, and 14-year-old Savanna Mohney.
David was pronounced dead at the scene. Mohney and his daughter Savanna were transported to Halifax Health Medical Center in Daytona Beach where they were both pronounced dead.
Lauren is in critical condition at Arnold Palmer Hospital for Children in Orlando.
Sheriff Ben Johnson said domestic violence reports have been filed within the family and an injunction was lifted back in June.
The wife is currently being interviewed at the operations center.

The Volusia County School District says Lauren attends Cypress Creek Elementary, David attended Creekside Middle School, and Savanna attended Spruce Creek High School. The district says they notified parents of students at all three schools of the shootings and have crisis teams at each of the schools Friday and again on Tuesday to assist students in dealing with the situation.