Hopes of finding survivors from a missing Argentine submarine with 44 crew members aboard have been revived after
the navy said it had detected what could be distress calls.

There has been no contact with the ARA San Juan since early Wednesday, prompting Buenos Aires to launch an air and sea search with help from countries including Brazil, Britain, Chile, Uruguay and the United States.

The search has, however, been complicated by stormy conditions, Argentine navy spokesman Enrique Balbi said on Saturday.

However, the defense ministry said it had detected seven satellite-transmitted signals that may be an attempt by the submarine to resume
contact.
The signals were received at 10:52 am (1352 GMT) and 3:42 pm (1842 GMT) on various naval bases with the help from US satellite communication experts, but they did not lock in, thus preventing a full connection.

source: AFP