WEST COVINA (CBSLA.com) — A homeless woman, who gave birth and abandoned her newborn in the restroom of a sandwich shop in West Covina, was arrested Monday, police said.

According to the West Covina Police Department, a woman went into the restroom of the Subway at 2540 S. Azusa Avenue and gave birth. She left a trail of blood at the fast-food restaurant drawing the employees’ attention.

When they went into the restroom, they found a placenta in the trash and an umbilical cord hanging from the toilet. The infant was partially submerged in toilet water and crying, said West Covina Police Spokesman Rudy Lopez.

The employees called 911 at 8:34 a.m. Paramedics rushed the baby boy to a local hospital, where he remains in critical condition, Lopez said.

The mother, Mary Grace Trinidad, 38, left behind a trail of blood which officers used to track her down at a Pep Boys store in the same shopping center and arrested her, Lopez said.

Trinidad faces charges of attempted murder and child abandonment. Bail will be set at $2 million, according to Lopez. She was also wanted on a $30,000 warrant for drug charges.

Trinidad was also taken to the same hospital where her baby was transported to.

Jocelyn Mejia of West Covina said she was appalled by the news. “Like even the nine-month process of having the baby with you. It’s just something that you can’t just give it up like that.”