Five immigrants deported by the United States to the small southern African nation of Eswatini under the Trump administration's third-country program are in prison, where they will be held in solitary confinement for an undetermined time,

The Trump administration sent five deportees to Eswatini, an African kingdom, saying that their own countries would not take them. But Eswatini says it will send them home.

On board the flight were five deportees from Vietnam, Jamaica, Laos, Cuba and Yemen who have been convicted of crimes ranging from child rape to murder, US Homeland Security Department Assistant Secretary Tricia McLaughlin said in an online post.