World News Update, what you need to know

MOSCOW - US Secretary of State John Kerry will hold impromptu talks with Russian Foreign Minister Sergei Lavrov in Paris on Sunday, after Russia pledged not to invade mainland Ukraine following its seizure of Crimea.

ELSEWHERE:

ABUJA - Nigeria's secret police say 21 detainees have died during an attempted escape from custody at its headquarters, with unconfirmed reports Boko Haram militants were involved.

SEOUL - North Korea says it "will not rule out" a new nuclear test as it defended its recent mid-range missile launch which triggered widespread international condemnation.

ISTANBUL - Violent feuds have broken out in Turkish local elections for village and neighbourhood leaders, leaving eight people dead and 13 wounded.

BEIRUT - More than 50 rebels and jihadists have been killed in fighting in northeast Syria's Hasakeh province as the Islamic State of Iraq and the Levant (ISIL) overrun a town bordering Iraq.

BANGUI, Central African Republic - Chadian soldiers have killed more than 30 civilians in Central African Republic's strife-torn capital city, officials say.

BAGHDAD - Attacks in Sunni-majority areas of Iraq have killed nine people, exactly a month ahead of parliamentary polls.