The personnel seized 899 packages of cocaine weighing 926 kilograms and 120 kilograms of a chemical precursor, Mexican newspaper Milenio said.
The pickup trucks were moving at a high speed, so an army patrol was sent after them, the newspaper said, adding that after a few miles, the drivers abandoned their cars and fled.
The vehicles and drugs were transferred to the border city of Tapachula, and a criminal case was initiated.