About 3,000 migrants set out on April 23 in a large caravan from southern Mexico and began walking north in what organizers said was a protest demanding an end to detention centers like the one that burned down last month, killing dozens.

The migrants, mostly Venezuelans, started walking north early on April 23 from Tapachula, a city in Mexico close to the border with Guatemala.

The stated goal of the migrants is to reach Mexico City in about 10 days and appeal for the closure of detention centers.