A Cuban exile wanted for the bombing of an airliner in 1976 has been charged with illegal entry into the US.
Luis Posada Carriles poses a problem for the US government
Anti-communist militant Luis Posada Carriles was arrested in Miami on Tuesday, weeks after he smuggled himself into the US.
He will be held in custody until an immigration court hearing on 13 June, US immigration officials said.
Venezuela wants him extradited to stand trial over the bombing of a Cuban airliner that killed 73 people in 1976.
Both Cuba and Venezuela have accused the US of protecting Mr Posada Carriles by delaying the extradition process.
The US says it will not deport him to any country that would hand him over to Fidel Castro's regime in Cuba.
Venezuela said on Wednesday it would not hand Mr Posada Carriles over, and Mr Castro said he would be happy to see him tried there.
US Immigration and Customs Enforcement (ICE) charged Mr Posada Carriles with "entering the United States without inspection in violation of the Immigration and Nationality Act".
The ICE statement said that Mr Posada Carriles would be able to contest his detention at the hearing before an immigration judge.