Police say a newborn boy found in a toilet at a Subway restaurant in California is doing well.

West Covina police spokesman Rudy Lopez says a detective sent to the hospital learned the infant will begin taking formula sometime Tuesday.

The baby was initially described as being in critical condition because the cold water lowered his core body temperature.

Employees found the baby after a bleeding woman left the sandwich shop Monday, and they followed a trail back to the toilet.

The suspected mother, a homeless woman, was arrested nearby for investigation of attempted murder and child abandonment, but she remains hospitalized.

Police say 38-year-old Mary Grace Trinidad had also been arrested on Jan. 3 for possession of a controlled substance and possession of drug paraphernalia.