A Pasadena grandmother is in custody accused of taking her 4-month-old granddaughter from a day care without the parents' permission.

Robin Lavois, 48, has been charged with kidnapping after an Amber Alert was issued for about a day after she allegedly took Kaitlyn Lavois from Kook Kids Daycare in Pasadena without the parents permission on Friday, court records show.

Investigators said the baby was found safe with her grandmother about 10:45 a.m. Saturday in Pasadena and was returned home.

The child's parents said Lavois did not have permission to pick up the child because of "mental problems and anger issues," according to court records.

Lavois was charged in 2007 with assault of a family member when she was accused of hurting a relative with a grease gun and she later was charged with violating a protective order against that same relative. She has also been charged with evading arrest, according to court records.

Pasadena police located the grandmother after a witness called to report a woman had answered her Craigslist ad selling baby formula. Lavois was soon located with the child after the tip was reported.

When she was located by police, she was dishevelled, rambling and could not keep her story straight, investigators said. The child was unharmed.

Lavois is scheduled to appear in a Harris County court Monday. She is in custody on a $30,000 bond.