AMBER ALERT: 4 TEXAS CHILDREN (Update)

The Amber Alert is being issued for four children: 1 year old Isabel Contreras, 2 year old Abigail Contreras, 3 year old Ray Alexander Contreras and Helena Contreras, whose age is unknown. The four children were staying with their mother, Amy at the maternal grandparents house in Cleveland, Texas, when their father, Ramiro Contreras came to the house brandishing a gun.

Shots were apparently fired in the house and the grandfather ran to a neighbor's and called 911 at around 5:02 a.m. this morning. The children's mother and all of the children were gone when the police arrived.

Ramiro Contreras is considered armed and dangerous.

Three people were found shot, one fatally,  at a Liberty County house where a woman and her four young children were believed abducted by her estranged husband, investigators said today.

The victims were airlifted this morning to Memorial Hermann Hospital in Houston. Their names were not released but they were identified as the mother, sister and brother of the 22-year-old abducted mother, Amy Contreras.

Contreras had been staying at her parents' Cleveland home with her children--7-month-old Helena, 1-year-old Isabel, 2-year-old Abigail, and 3-year-old Ray Alexander. Neither she nor her four children have been seen since they vanished with her husband, Ramiro, 24, who was brandishing a gun, according to Contreras'  father who ran to a neighbor's house to call 911.

Ramiro Contreras is believed to be driving his wife's 1999 silver Ford Escort with temporary tags, bearing the number 1020.