DNA tests have confirmed that a man accused of kidnapping and holding captive three teenage girls in Ohio is the father of a six-year-old girl born in captivity, the attorney general said.
Ohio Attorney General Mike DeWine said in a statement that "forensic scientists worked throughout the night to confirm that Castro is the father of the six-year-old girl born in captivity to one of the kidnapping victims."
The tests also showed that Ariel Castro, 52, is not connected to any other cases in the state, although the FBI is still checking the sample against national cases.
Two brothers of the man accused of kidnapping and raping three teenagers in the US state of Ohio have said they hope he suffers in jail.
The man accused of kidnapping three Ohio women could face the death penalty if he is found guilty of new charges prosecutors may bring.
Ariel Castro has been charged with four counts of kidnapping and three of rape after three Ohio women were held captive for nearly a decade.