NBC News @NBCNews
More than 600 migrants have died this year trying to cross the Mediterranean Sea. Aid groups and authorities rely on migrants or traffickers using sat phones to alert them — or third parties such as nearby merchant ships — with a distress signal. (3 of 5) https://t.co/e6gCJsZU7Q https://t.co/Pg1dHbt — PolitiTweet.org