MATIAS ROMERO, Mexico (AP) — The Latest on the caravans of migrants making their way through Mexico (all times local):

8:15 a.m.

The caravan of Central American migrants has resumed their trek through Southern Mexico after spending nearly three weeks on the road.

The group estimated to number some 4,000 is now heading for the town of Donaji near the Gulf coast state of Veracruz.

After sleeping under tin sheeting to cover himself from the rain, Saul Guzman still had hope.

"I've been through a lot," said the 48-year-old traveling with his son. "I want to spend my time differently, not in poverty."

He had left his elderly mother a coffin before setting out on his journey — but said it could also be his own.

Walter Cuello, a caravan organizer, said immigrants would again eat and rest at their next destination.

"We've gotten underway," he said.

A second, smaller group of 1,000 or so migrants is more than 200 miles behind the first caravan. A third band of about 500 from El Salvador has made it to Guatemala, and a fourth group of about 700 has set out from the Salvadoran capital.