UPDATED | October 7, 2017, 9:09PM

Sherin Mathews (Richardson Police Department)

RICHARDSON (CBSDFW.COM) – An Amber Alert has been issued for a missing three-year-old girl in Richardson. Police have arrested the father of the girl for child endangerment.

Police say Sherin Mathews was last seen by her father outside the family’s backyard at around 3:00 a.m. in the 900 block of Sunningdale on Saturday.

According to police, the child was reported missing at 8:00 a.m. Saturday.

Police are trying to figure out what happened in the span of when she was last seen and when she was reported missing.

She is approximately 36 inches tall and weighs about 22 pounds.

According to police, she suffers from developmental issues and has limited verbal communication skills.

She was last seen wearing a pink top, black pajama bottoms and pink flip-flops.

Neighbors and church members arrived to family’s home in support. They say Sherin was adopted.

“She’s not talking. She’s unable to talk at this point,” said Mary Easow, who attends church with the family. “We all were praying for her upbringing and normal route.”

Three vehicles belonging to the family of the missing child have been towed.

Law enforcement believes the child is in grave or immediate danger.

Police are asking anyone with information on her whereabouts to call 972.744.4800.