Night of the Zombies (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 Max are assigned to cover the story/document the event and expose it. Meanwhile, four soldiers are assigned to a secret mission also in New Guinea. When their Jeep stumbles upon the Land Rover where Lia and Max 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.