The health ministry asks people to clean up in south and north of the island . The warning came after the discovery of hundreds of dead whales and dolphins . Preliminary reports ruled out the possibility that seismic sound waves created by oil exploration in the area could have killed the birds , the environment ministry has said . It 's not clear what caused the deaths of the two different species or if they are connected .
The health ministry asks people to clean up in south and north of the island . The warning came after the discovery of hundreds of dead whales and dolphins . It 's not clear what caused the deaths of the two different species or if they are connected .