Authorities were investigating white flares spotted in the South Atlantic overnight, as urgency grew on Tuesday in the search for a missing Argentine navy submarine amid worry that its 44 crew members could be running out of oxygen.
The ARA San Juan, a German-built diesel-electric vessel, docked in Buenos Aires, Argentina.
"The sups captain reported an electrical problem before it disappeared", Argentinian spokesman Gabriel Galeazzi said.
Hopes for a successful search waned when the navy said satellite calls detected at the weekend did not come from the vessel.
Kenya's Supreme Court upholds Kenyatta's victory
Kenya has been through two presidential elections this year, both of which have come before the Supreme Court for review. On Monday, some of the youths who spoke to Nation said they were not concerned with the Supreme Court decision.
After he reported the sub had experienced a "short circuit", he was told to "change course and return to Mar del Plata", said Galeazzi.
The ARA San Juan submarine went missing Wednesday as it journeyed from the extreme southern port of Ushuaia to the coastal city of Mar del Plata.
Ships and aircraft from Argentina, the United States, Uruguay, Brazil and other nations have been searching for the sub on the surface and underwater.
"A warship has a lot of backup systems, to allow it to move from one to another when there is a breakdown", Galeazzi said. The craft was navigating normally, underwater, at a speed of five knots toward Mar del Plata when it was last heard from, he said.
Trump declares North Korea a state sponsor of terror
In mid-October, Trump turned down any diplomatic approach towards the DPRK in a message on his Twitter account. It has fired two missiles over Japan and on September 3 fired its sixth and largest nuclear test.
Balbi said the sounds being detected were "constant", raising some hope that the crew of the ARA San Juan submarine may have been intentionally making noise to attract rescuers.
President Mauricio Macri assured families of the missing sailors that the search would continue. "We continue to do everything, deploying all available national and global media, to find them as soon as possible".
On Saturday, Argentina said it detected seven brief satellite calls that officials believed may have come from the missing submarine, though the origin of the calls could not be confirmed. The submarine had reported an electrical malfunction, before losing contact with authorities last Wednesday, in the South Atlantic, some 430 kilometers off the Argentine coast.
US satellite communications company Iridium Communications Inc, which was brought in to help analyze the calls, said they did not originate with its device aboard the vessel and may have been from another satellite communications company's equipment.
John Lewis Black Friday 2017 - best deals, discounts and special offers
Statistics made available by the NRF reveal that a year ago 110 million shoppers headed to the web for Black Friday deals. The biggest retailers begin their deals on the week starting 20th November and finish a week later after Cyber Monday.
If the sub is bobbing adrift on the surface and the hatch is open, it will have an available air supply and enough food for about 30 days, he said.