A migrant with his mouth sewed as a way to protest against the migration policy of the Mexican government carries a wooden cross during a pause amid a trip in a caravan heading for Mexico City to speed up their applications for U.S. asylum, in Huixtla, in Chiapas state, Mexico April 25, 2023. REUTERS/Gabriela Sanabria

Migrants take part in a caravan towards Mexico City called 'The Migrant's Via Crucis' in memory of the 40 migrants who died during a fire at a migrant detention center in the border city of Ciudad Juarez, as they walk along the road en route to Viva Mexico, Chiapas state, Mexico April 23, 2023. REUTERS/Mahe Elipe

Migrants, detained for months in southern Mexico, continue their trip in a caravan heading for Mexico City to speed up their applications for U.S. asylum, in Alvaro Obregon, in Chiapas state, Mexico April 24, 2023. REUTERS/Gabriela Sanabria

A migrant, detained for months in southern Mexico, holds a banner with red crosses in memory of the migrants who died at a detention center in the northern city of Ciudad Juarez, as he continues his trip in a caravan heading for Mexico City to speed up their applications for U.S. asylum, in Huixtla, in Chiapas state, Mexico April 25, 2023. REUTERS/Gabriela Sanabria

A migrant fixes his sock as he stands next to other migrants taking part in a caravan towards Mexico City called 'The Migrant's Via Crucis' in memory of the 40 migrants who died during a fire at a migrant detention center in the border city of Ciudad Juarez, as they walk along the road en route to Viva Mexico, Chiapas state, Mexico April 23, 2023. REUTERS/Mahe Elipe

Migrants, detained for months in southern Mexico, continue their trip in a caravan heading for Mexico City to speed up their applications for U.S. asylum, in Huixtla, in Chiapas state, Mexico April 25, 2023. REUTERS/Gabriela Sanabria

Migrants take part in a caravan towards Mexico City called 'The Migrant's Via Crucis' in memory of the 40 migrants who died during a fire at a migrant detention center in the border city of Ciudad Juarez, as they walk along the road en route to Viva Mexico, Chiapas state, Mexico April 23, 2023. REUTERS/Mahe Elipe

Migrants, detained for months in southern Mexico, continue their trip in a caravan heading for Mexico City to speed up their applications for U.S. asylum, in Huixtla, in Chiapas state, Mexico April 25, 2023. REUTERS/Gabriela Sanabria

A migrant, detained for months in southern Mexico, rests during a pause amid his trip in a caravan heading for Mexico City to speed up their applications for U.S. asylum, in Huixtla, in Chiapas state, Mexico April 25, 2023. REUTERS/Gabriela Sanabria

Migrants, detained for months in southern Mexico, continue their trip in a caravan heading for Mexico City to speed up their applications for U.S. asylum, in Huixtla, in Chiapas state, Mexico April 25, 2023. REUTERS/Gabriela Sanabria

Migrants, detained for months in southern Mexico, continue their trip in a caravan heading for Mexico City to speed up their applications for U.S. asylum, in Alvaro Obregon, in Chiapas state, Mexico April 24, 2023. REUTERS/Gabriela Sanabria

Migrants, detained for months in southern Mexico, take part in an assembly during a pause amid their trip in a caravan heading for Mexico City to speed up their applications for U.S. asylum, in Huehuetoca, in Chiapas state, Mexico April 24, 2023. REUTERS/Gabriela Sanabria

A paramedic checks the injured feet of a migrant, detained for months in southern Mexico, as she continues her trip in a caravan heading for Mexico City to speed up their applications for U.S. asylum, in Huixtla, in Chiapas state, Mexico April 25, 2023. REUTERS/Gabriela Sanabria

Migrants, detained for months in southern Mexico, rest during a pause amid their trip in a caravan heading for Mexico City to speed up their applications for U.S. asylum, in Huixtla, in Chiapas state, Mexico April 25, 2023. REUTERS/Gabriela Sanabria

Migrants, detained for months in southern Mexico, rest during a pause amid their trip in a caravan heading for Mexico City to speed up their applications for U.S. asylum, in Huixtla, in Chiapas state, Mexico April 25, 2023. REUTERS/Gabriela Sanabria