Updated

Detroit area authorities say they have been searching for a newborn whose mother told them was thrown away by her boyfriend.

The Detroit News, Detroit Free Press and broadcast reports say police were looking for the baby Tuesday night and Wednesday morning following the 29-year-old woman's examination Tuesday at a hospital. They are also searching for her 35-year-old boyfriend, the baby's father.

The Detroit woman, who was bloodied and caked with mud when she checked herself into the hospital, said she had suffered a miscarriage. But police say she later said her boyfriend had taken the baby from her and threw it into a trash bin.

Officials don't know if the baby is alive.