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Boston bombing suspect moved to prison hospital

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Surviving suspect read Miranda Rights after initial interrogations

(CNN) — The parents of the Boston Marathon bombing suspects have left their home in Dagestan for another part of Russia, the suspects’ mother Zubeidat Tsarnaev told CNN Friday. She said the suspects’ father, Anzor Tsarnaev, is delaying his trip to the United States indefinitely.

Meanwhile in Boston, their son Dzhokhar, the surviving bombing suspect, was transported to a federal detention center hospital, a federal law enforcement official said Friday. His brother and alleged co-conspirator Tamerlan was killed in a gun battle with police last week.

“Dzhokhar Tsarnaev has been transported from the Beth Israel Deaconess Medical Center and is now confined at the Bureau of Prisons facility FMC Devens at Ft. Devens, Massachusetts,” said Drew Wade, spokesman for the U.S. Marshals.

Their father, Anzor, was to fly to the United States as soon as Friday to cooperate in the investigation into the attacks. But his wife called an ambulance for him Thursday.

She told CNN’s Nick Paton Walsh that her husband was delaying the trip for health reasons. She wouldn’t elaborate.

Anzor Tsarnaev agreed to fly to the United States after FBI agents and Russian officials spoke with them for hours this week at the family’s home.

Russian authorities have previously expressed suspicions that his wife, Zubeirdat Tsarnaev, and their elder son, Tamerlan, the deceased suspect in the attacks, were following radical ideologies.

The mother will not be flying to the United States, where she is wanted on felony charges of shoplifting and destruction of property.