Workers used sonar equipment Monday to investigate a deep-sea object found 26 days after an Argentine sub went missing with 44 crew members aboard.
President Mauricio Macri and the navy consider the crew to have been tragically lost.
But family members desperate for closure have been pushing for the search to continue until the vessel is located and questions about its fate are answered, despite a series of false hopes.
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“A new object has been found at 1,000 metres with sonar search equipment in the South Atlantic. And it is being looked at to determine if it could be the Argentine sub,” navy spokesman Enrique Balbi told reporters.
It was spotted by the US vessel Atlantis.
The missing Argentine submarine ARA San Juan. Photo: AP
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Authorities have not set any date for when the search might be officially abandoned.