BBC Verify looks at the evidence behind allegations that the Salvadoran mistakenly deported to a mega-prison was a dangerous gang member.

US Secretary of State Marco Rubio and Salvadoran President Nayib Bukele have been directly in touch about the detention of Kilmar Abrego Garcia, whom the US mistakenly deported to El Salvador’s notorious megaprison,

President Donald Trump said in an interview with ABC News on Tuesday that he "could" have Kilmar Abrego Garcia returned to the U.S. with one phone call, even though the administration has argued in court that the government has no ability to get him back.