File picture released by Telam showing submarines ARA San Juan, ARA Salta and ARA Santa Cruz upon arrival to Mar del Plata's Navy Base, 13 June 2014

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The San Juan (first from left) is seen right here with two different subs in 2014

The Argentine navy is looking the South Atlantic for a submarine that has not made contact for 48 hours.

The vessel with its 44 crew was final situated greater than 400km (250 miles) off the coast of Patagonia, the navy stated.

There is no such thing as a signal but that the issue is something worse than a communications failure, a spokesman stated.

It’s believed that the ARA San Juan, a German-built TR-1700 kind submarine, suffered an electrical malfunction, Argentina’s La Nacion stories.

Navy spokesman Enrique Balbi advised the newspaper the submarine had been on its manner from the Ushuaia naval base to the Mar del Plata base, its traditional station, when “at some second communication stopped”.

“It is not that it is misplaced,” he stated. “For it to be misplaced we might must search for it and never discover it.”

Mr Balbi stated the submarine had meals provides for a number of days and was in all probability persevering with its deliberate journey.