San Antonio police have issued an Amber Alert for a missing child who authorities believe is in "grave or immediate danger".

Law enforcement is currently looking for three-year-old Zanyah Rita Lucio.

The youngster was last seen wearing a pink tank top, pink pajama pants with rainbows and hearts, and no shoes. Furthermore, she stands 3 feet 4 inches tall and is 38 pounds with brown hair and brown eyes, police said.

Meanwhile, authorities are also searching for 20-year-old Gabriella K. Lucio in connection with Zanyah's abduction. According to the police description, she stands 4 feet 11 inches tall, is approximately 130 pounds with black/red hair and brown eyes.

Anyone with related information is urged by the San Antonio Police Department to call 210-207-7660.

Note: According to authorities, the Amber Alert has not featured on any Texas Department of Transportation signs because a vehicle is not involved in the child's disappearance