Texas authorities investigating the disappearance of a 33-year-old mother and her 1-month-old daughter said Friday that an infant girl was found safe at a home near Houston, and that another person was in custody on charges of kidnapping and tampering with a corpse.

Austin police said a body was found at the home but have not confirmed whether it was Heidi Broussard, an Austin woman who has been missing for more than a week. According to KXAN, a longtime friend of Broussard and Magen Fieramusca was named a suspect. Fieramusca told the news station that she and Broussard were "best friends."

»RELATED: Aniah Blanchard cause of death revealed; suspect's charge upgraded to capital murder

The Austin Police Department said DNA testing is underway to determine whether the baby found at the home is Broussard's daughter, Margo Carey.The baby was found “healthy” and is in the care of Texas Child Protective Services, according to police.

They did not immediately release the name of the person arrested.

Authorities had a 2 p.m. news conference in Austin.

Austin police press conference after missing mom's body found

NEWS CONFERENCE: Austin police arrested a suspect after finding a body that most likely belongs to Heidi Broussard. Police said DNA testing is now needed to confirm if an infant found at a Houston home is Broussard's three-week-old daughter, Margot Carey. Read more on our reporting about this investigation here: https://bit.ly/2EAT7jo

Posted by KXAN News on Friday, December 20, 2019

Tammy Broussard told NBC News that she was told by police that the body is likely that of her daughter, Heidi Broussard, and that the body was found in the trunk of a car at the home in Jersey Village about 130 miles (209 kilometers) southeast of Austin.

Tammy Broussard said she was told by police that her granddaughter was found in good condition.Cy-Fair Fire Department Lt. Daniel Arizpe told KPRC-TV that a 1-month-old girl found at the home was taken to a hospital for treatment but had “no obvious injuries or problems.”

FBI agents from Houston were also at the scene. The agency later referred questions to Austin police.

Heidi Broussard and her newborn daughter were last seen Dec. 12 in Austin when Broussard dropped her 6-year-old son off at an elementary school around 7:30 a.m. that morning.