"The Chilean Navy sent on November 21 a vessel, AGS 61, to Argentina in order to assist in [the search for] the missing Argentinian submarine," the Chilean Foreign Ministry told Sputnik, adding that the vessel would remain in Argentina for as long as necessary.
Previously, Chile also sent a C-295 reconnaissance aircraft to assist in the search for the submarine.
The San Juan submarine, carrying a crew of 44, lost contact with its command on November 15 following reports of a mechanical failure. A large-scale search and rescue operation has been launched in the area where the submarine could likely be. On Monday, Argentina’s army spokesman revealed that the submarine was designed to survive autonomously for seven days, which means its oxygen supply can last until Wednesday.
Russian President Vladimir Putin recently confirmed his readiness to support the Argentinian rescue mission by deploying a Russian high-tech oceanographic vessel to the search area. Apart from Russia and Chile, the US and the UK have also offered their assistance.