Argentina has announced that one of its warships sank a Chinese-flagged boat that was fishing illegally in Argentinian national waters. They said that four people on the boat were rescued and arrested as sailors shot holes into the boat’s hull, causing it to sink. China has meanwhile expressed its serious concern to Argentina and the government has called for an investigation. Al Jazeera reports: The navy statement said on Tuesday that the boat was intercepted a day earlier off the coast of Puerto Madryn, about 1,460km south of Buenos Aires. The statement said the boat did not heed warning calls and instead tried to ram an Argentine naval vessel. Sailors then shot holes in different parts of the fishing boat, causing it to sink, the navy said. Four people on board were rescued and arrested. They remained in custody and were to go before a federal judge in southern Chubut province, the statement said. The navy said it had been 15 years since one of its vessels last sank a foreign vessel fishing illegally in Argentina’s waters. In Beijing, Lu Kang, a spokesman for the Chinese Foreign Ministry, posted a statement on the ministry’s website saying the boat had been [...]