BROOKLYN - Police have arrested a mother in connection with the death of her 19-month-old son.

According to authorities, 20-year-old Anna Thomas has been charged with murder and manslaughter after Justin Stephens was found unconscious and unresponsive in their home Sunday night.

Cops say a 911 call had been placed about an emotionally disturbed woman at 1199 Ocean Ave.

The toddler was rushed to Community Hospital, but was pronounced dead on arrival.

Investigators say the 19-month-old had no visible trauma or wounds to his body. They are waiting for the medical examiner to determine the cause of death.