Peru has filed a suit with the International Court of Justice in The Hague in a bid to ratify its claim to a chunk of Pacific Ocean bordering Chile.

Chile, which says the issue was settled by two treaties in the 1950s, was incensed at the legal move to clarify the maritime border, saying the waters claimed by Peru are ”unquestionably under Chilean sovereignty and jurisdiction”. Peru says the 1952 and 1954 treaties only governed fishing rights.