Ariel Castro Update: Six-year-old girl found in home is Castro's daughter, Ohio attorney general says

(CBS/AP) -- The Ohio attorney general says tests have confirmed that alleged kidnapper Ariel Castro is the father of a 6-year-old girl rescued from his house with three women this week.

PICTURES: Ohio women missing for nearly a decade found alive

Attorney General Mike DeWine's office confirmed Castro's paternity in a news release Friday. DeWine says a sample of Castro's DNA was taken Thursday and forensic scientists worked through the night on the case.

The Attorney General's Bureau of Criminal Investigation (BCI) received a sample of Castro's DNA late Thursday afternoon, CBS affiliate WOIO reports.

The girl is the daughter of Amanda Berry, 27, who authorities say was held for about a decade in Castro's house in Cleveland along with Gina Dejesus, 23, and Michelle Knight, 32.

Castro's DNA profile was also compared to other DNA profiles submitted to the Combined DNA Index System (CODIS), WOIO reports. Castro's DNA did not match any other Ohio cases, but national results are pending, reports the station.

Castro is being held on $8 million bond.The 52-year-old is in a Cuyahoga County Jail in isolation under what's called a "suicide precaution," WOIO reports. He is charged with rape and kidnapping, and the case is expected to go before a county grand jury.

A prosecutor said he may charge Castro with aggravated murder related to forced miscarriages. If he is charged and found guilty, he could be eligible for the death penalty.

Complete coverage of the Cleveland kidnapping on Crimesider