Several hundred migrants from Honduras who left the northern city of San Pedro Sula early on Tuesday are now crossing Guatemala on their way to the US.
The first wave of about 500 people has reached Tecún Umán on the border between Guatemala and Mexico.
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A larger, slower group is in Guatemala City, where its members sought refuge at a local shelter.
This new caravan set off as hundreds of Central Americans remain stranded on the US-Mexico border.
Source: Migrant caravan: New Honduran group crosses Guatemala
