Russian foreign minister says Ukraine is doing nothing to control "extremists" in east after deadly exchange of fire.
Four more arrests made as President Park Geun-hye describes behaviour of captain and crew as "utterly incomprehensible".
Isak Mohamed killed and another politician injured by a bomb attached to vehicle in Mogadishu.
Israel launches air strikes in Gaza, hitting Hamas training targets after Palestinians fire a missile at Israeli troops.
Show Highlights
Witness21 Apr 2014 06:49 GMT
An inside look at the tunnels under Gaza and the men who risk their lives to bring in essential supplies.
Artscape: Poets of Protest20 Apr 2014 10:03 GMT
The Sahrawi war poetess is a vivid testament to three decades of the Sahara conflict.
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Three years since the start of the uprising, nine million people have been displaced by fighting.
An in-depth look at Egypt's ongoing political crisis.