Over 200 dead dolphins washed ashore in Peru
10 February 2012 Last updated at 19:52 GMT
Residents of Chiclayo, on the northern coast of Peru, have found hundreds of dead dolphins over an area 66 miles long in the last week.
The region known as Lambayeque is located nearly 500 miles north of Lima, the Peruvian capital.
The authorities are still investigating the cause of the deaths and have not yet ruled out the possibility of hunting killings.
Margarita Rodriguez reports.