The death toll from Thursday's house fire in Lilburn now stands at three, all children.

A four year old and an 18 month old have died from their injuries.  A 3 year old boy died yesterday as a result of the fire at a home in the 100 block of Spring Mill Drive.

Investigators believe the fire began as a result of a meth lab in the home and are now looking for a suspect.

Police say Ivan Gonzalez, who lived at the house, will be charged with three counts of murder.

Gonzalez is not the children's father and he is not yet in custody.

He's a hispanic man, 5'7 and 190 pounds, with a tattoo of the Virgin Mary on his calf.

The children's mother, identified as Neibi Yamel Brito, has been arrested and, police say, she will be charged with trafficking methamphetamine.

Several good Samaritans helped get the children out of the burning home. But the 3-year-old boy died Thursday, and police said Friday that the other two also had died after being rushed to Grady Memorial Hospital.

None of the victims' names were immediately released.