Iraq needs more airstrikes to dislodge IS in Tikrit - officials
More than 20,000 soldiers are taking part in the offensive to retake Saddam Hussein's home city
Iraqi offensive on Tikrit stalled, officials say build evidence of chlorine
Iraqi Kurdish officials say the have found chlorine in town retaken from Islamic State
Iraqi offensive on Tikrit stalled for third day
Islamic State extremists still hold about half of Tikrit, which lies about 160 km north of Baghdad
Iraqi troops pause battle for Tikrit, await reinforcements
Islamic State fighters still hold half of the city
Sudan rebels say they have begun armed campaign to derail elections
It is the first time a major rebel group explicitly says it aims to force the government to cancel the election through armed action
Iraqi offensive to dislodge Islamic State from Tikrit appears to stall
Victory in Tikrit would give Iraqi forces momentum for next stage of campaign to retake Mosul
Where is the focus on housing the displaced people of Syria?
Underfunding, low media coverage and lack of political resolve to end Syrian war prolonging suffering of refugees and piling pressure on neighbouring countries
Iraqi forces slowed by snipers and bombs in Tikrit
Iraq's Shi'ite-led government pushes to claw back first city from Islamic State ahead of attempt to recapture Mosul
Iraqi forces push into Tikrit, bombers hit Ramadi
Islamic State fighters stormed into Tikrit last June during a lightning offensive through northern and central Iraq
Iraqi forces push into Tikrit from north and south
Heavy fighting reported in Saddam Hussein's home city as Iraqi forces mount major offensive against Islamic State