NEW HAVEN, Conn. (WTNH) — The mother of a 10-month-old boy who died in June turned herself in on Monday for a manslaughter charge, according to police.

Alexandra Polino, 40, is also facing two counts of risk of injury. An arrest warrant was signed for her on Sept. 15

She has been assigned a $250,000 bond.

The baby was found unresponsive on June 28 at a home on Farren Avenue, according to police. He was pronounced dead at a hospital.

According to an affidavit, the initial police report said Polino told police that she woke up at noon and found the baby cold and unresponsive. Police also spoke to New Haven Fire Department Lietunant Patrick Sheiffele, who said he was leaving a separate medical call when he heard a woman yelling for help and that he found a woman, later identified as the baby’s cousin, holding the baby and screaming that the baby wasn’t breathing.

The baby’s cause of death has been deemed a homicide by ingesting drugs, which included fentanyl, according to police.

She’s scheduled to appear in court on Nov. 8.