ABOUT 600 dead penguins have washed up on Uruguay's Atlantic coast over the past few days.

Experts are trying to determine what has killed the animals.

A navy statement says the latest batch is 200 dead Magellan penguins discovered on the shore at La Paloma about 200km east of Montevideo.

A marine animal rescue group previously reported that the carcasses of 400 Magellan penguins washed up around the resort town of Piriapolis along with dead turtles, dolphins and albatrosses. The resort is about halfway between Montevideo and La Paloma.