The incident happened Thursday night in the Catamarca region.
Authorities say the mudslide occurred due to heavy rains which triggered an overflow of water. It destroyed the area pushing massive boulders into the roads, vehicles, and homes.
Rescue unites evacuated about 600 people from their homes. The deadly mudslide killed 3 people and eight others are still missing.
Argentine president Cristina Fernandez ordering government assistance to the area.