Hell of the Living Dead (1980)

In New Guinea, a top-secret experiment of the Hope Center Chemical Factory goes awry and chemicals are accidentally released, turning scientists and workers into zombies. The famous French journalist Lia Rousseau and her cameraman Pierre are assigned to make a reportage and disclose to the world what is happening in New Guinea.

Meanwhile, four soldiers are assigned to a secret mission also in New Guinea. When their Jeep stumbles upon the Land Rover where Lia and Pierre are traveling, they have to defend themselves against a zombie attack. Then they decide to travel together, learning that the island and the residents are infected with a chemical that turns most of them into zombies.