Video shows masked and plain-clothed US federal agents detaining a Turkish PhD student from Tufts University.
A power-sharing deal between leaders Kiir and Machar unravels, threatening a return to South Sudan's bloody civil war.
Rumeysa Ozturk, Mahmoud Khalil and Badar Khan Suri are among several students targeted by Trump.
Local authorities say 39 rescued after vessel carrying tourists sunk off Hurghada’s tourist promenade area.