California: A 32-year-old woman from Iraq who was found severely beaten in her California home with a note left next to her saying "go back to your country" has died.

The director of the San Diego chapter of the Council on American-Islamic Relations said Shaima Al Awadi was taken off life support on Saturday afternoon.

Hanif Mohebi said he met with Al Awadi's family on Saturday.

The mother of five had been hospitalised since her 17-year-old daughter found her unconscious on Wednesday in the family's house.

The daughter told KUSI-TV that her mother was hit repeatedly with a tire iron, and that the note said "go back to your country, you terrorist." Police said the family had found a similar note earlier this month but did not report it to authorities.