Mexico City, Aug 23 (IANS): A new US-bound caravan with about 500 migrants from Central and South American countries has set off from Mexico's southernmost state of Chiapas, local media reported.

The caravan departed on Monday from Miguel Hidalgo Central Park in the city of Tapachula on the border with Guatemala, where many migrants have been stranded for days waiting for the documents needed to legally travel through Mexico toward its northern border with the US to be processed, reports Xinhua news agency.

The caravan passed through an immigration checkpoint about 6 km north of Tapachula without any mishaps or clashes with immigration authorities, local media reported.

The migrants plan to walk some 300 km over the next few days to reach San Pedro Tapanatepec in Oaxaca state in southern Mexico, where they hope to obtain travel documents more quickly than in Tapachula.

Several migrant caravans set off from Tapachula in the past few months and throughout 2021, though most were disbanded by Mexican authorities, according to local media reports.

Some migrants have accepted job opportunities in areas with lower immigration flows than Chiapas, where migrants arrive nonstop, mostly from Central and South America.

The largest caravan so far this year left Tapachula on June 6 with more than 10,000 migrants but was dissolved five days later, after reaching an agreement with immigration officials.

The uptick in migrant caravans has exposed the unprecedented immigration crisis affecting Central America and Mexico's border cities in recent years.

Mexico deported more than 114,000 illegal immigrants in 2021, and detained 115,379 between January 1 and April 13 of this year alone, according to the Immigration Policy Unit of the Ministry of the Interior.

The number of migrants detained by the US on the border with Mexico between October 1, 2020 and September 30, 2021 reached 1,734,686, a record high.