BROOKLYN — A 21-year-old woman home alone with her child was drugged and sexually assaulted inside her East New York apartment on Monday, according to the NYPD.

The woman was in her kitchen with her 9-month-old child at about 3:30 p.m. when she went to the bathroom, NYPD Chief of Detectives Bob Boyce said during a press conference Tuesday.

She returned to the kitchen and a man came up from behind and placed something over her face that smelled like alcohol, Boyce added.

The woman then lost consciousness and was sexually assaulted.

She awoke on her kitchen floor a short time later and found her child had been moved to another room and was unharmed, according to police.

She then called her sister, who alerted authorities.

There was no immediate description of the suspect and there were no patterns of sexual assaults near the woman's home, Boyce said.

Police also did not have a more general location about where the assault happened.

The case is being investigated by the Brooklyn Special Victims Squad.