A migrant kid walks inside the Casa Tochan in Mexico City, Mexico, March 30, 2021. The Casa Tochan, which means "our home" in the native language of Nahuatl, is a shelter for migrants from Central America heading for the U.S. border at Mexico City, Mexico. (Photo: Xinhua)

Photo taken on March 30, 2021 shows a view of the Casa Tochan in Mexico City, Mexico. The Casa Tochan, which means "our home" in the native language of Nahuatl, is a shelter for migrants from Central America heading for the U.S. border at Mexico City, Mexico. (Photo: Xinhua)

A volunteer walks inside the Casa Tochan in Mexico City, Mexico, March 30, 2021. The Casa Tochan, which means "our home" in the native language of Nahuatl, is a shelter for migrants from Central America heading for the U.S. border at Mexico City, Mexico. (Photo: Xinhua)

A migrant man takes exercise inside the Casa Tochan in Mexico City, Mexico, March 30, 2021. The Casa Tochan, which means "our home" in the native language of Nahuatl, is a shelter for migrants from Central America heading for the U.S. border at Mexico City, Mexico. (Photo: Xinhua)

A migrant kid is seen inside the Casa Tochan in Mexico City, Mexico, March 30, 2021. The Casa Tochan, which means "our home" in the native language of Nahuatl, is a shelter for migrants from Central America heading for the U.S. border at Mexico City, Mexico. (Photo: Xinhua)

A migrant kid is seen inside the Casa Tochan in Mexico City, Mexico, March 30, 2021. The Casa Tochan, which means "our home" in the native language of Nahuatl, is a shelter for migrants from Central America heading for the U.S. border at Mexico City, Mexico. (Photo: Xinhua)

Migrants rest inside the Casa Tochan in Mexico City, Mexico, March 30, 2021. The Casa Tochan, which means "our home" in the native language of Nahuatl, is a shelter for migrants from Central America heading for the U.S. border at Mexico City, Mexico. (Photo: Xinhua)