MEXICO CITY—U.S. officials say an alleged 14-year-old drug gang killer in Mexico is a U.S. citizen.
U.S. Embassy spokesman Alexander Featherstone says U.S. authorities have also confirmed his 19-year-old sister is an American citizen. He says embassy officials have visited both in prison.
A birth certificate shows the boy was born in San Diego. Earlier this week, there was no record of him in county files.
The boy and his sister were arrested last week as they tried to board a plane to Tijuana in an airport near Cuernavaca south of Mexico City. A 23-year-old sister who drove them to the airport was also detained.
The siblings' mother was arrested in her San Diego apartment on Monday night and charged on Wednesday with entering the U.S. illegally.