Peruvian President Pedro Castillo declared an environmental emergency on Thursday as clean-up teams struggled to contain a huge oil spill at the country's biggest refinery, after rogue waves rocked a ship unloading crude there.
The spill, blamed on unusual swells caused by a volcanic eruption thousands of miles away in Tonga on Sunday, has dirtied waters and beaches along Peru's Pacific coast, with dead birds and seals washing up on shore.
