Tonga closed its borders on Wednesday after two virus cases were detected amid relief efforts after it was hit by a major volcano and a tsunami last month.
The Pacific island country was free of the virus for nearly two years except for one case which was detected last year, however, Prime Minister Siaosi Sovaleni announced two men had tested positive and were working in the port where humanitarian aid has been arriving.
The Peruvian government declared an environmental emergency Saturday to deal with a spill caused by freak waves from a volcanic eruption in the south pacific.
Last Saturday, a powerful eruption of an undersea volcano near Tonga unleashed tsunami waves as far away as the United States.
As a result of the oil spill near Lima, beaches have been polluted, birds have been killed, and tourism has been adversely affected.