caravan? griff jenkins is in southern mexico and asks organizers where the money is coming from. >> reporter: a rest day 25 miles north of where they began their journey four days ago. children playing in the street, healthcare aid workers along with vendors selling to the migrants. while we have seen government agencies try to help the migrants along the way, even giving a pamphlet to assist the migrants we haven't figured out who is paying, how this caravan is being funded. we asked the leader that question. here is what he said about being funded. >> i don't leave my money, this is the way they go, what happened happened. the churches or all the people given food, i don't know but i am not getting funded. >> reporter: you see the migrants trying to beat the heat