Migrants found in two US-bound trailer trucks

Several of the 513 Mexican migrants dehydrated after traveling for hours in dangerously crowded conditions

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Police in Mexico's southern Chiapas state have found 513 migrants inside two trailer trucks bound for the US, and said they had been transported in dangerously crowded conditions.

Some of the immigrants were suffering from dehydration after traveling for hours clinging to cargo ropes strung inside the containers to keep them upright and to allow more migrants to be more crammed in on the floor.

The trucks had air holes punched in the tops of the containers, but migrants interviewed at the state prosecutors' office said they lacked air and water

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