Venezuelan migrants imprisoned for months in El Salvador under a U.S. immigration crackdown have reunited with their families.

Venezuela announced a probe into torture claims by migrants the US sent to a Salvadoran prison, where they said they were beaten, abused, and fed rotten food.

Venezuela's attorney general's office said on Monday that it has opened an investigation into El Salvador's President Nayib Bukele for alleged mistreatment and human rights violations against Venezuelan migrants.