Hopes that Somalia may soon turn the page on decades of anarchy have been dealt a string of blows, giving the internationally-backed government little to cheer as it marks its first birthday.
The use of chemical weapons in Syria would constitute a "crime against humanity", adding there was "no time to lose" in investigating an alleged attack which the opposition says killed hundreds.
US armed intervention in Syria would not resolve the civil war and rebel forces cannot be relied on to back American interests, the top military chief said in a letter to Congress.
President Barack Obama and top aides Tuesday scrutinized US strategy on Egypt, while the White House denied it had quietly frozen millions of dollars in aid after Cairo's military crackdown.
Bloodbath in Egypt, civil war in Syria, stalemate in Tunisia: the Arab Spring has stoked turmoil because of a lack of maturity among the region's new political class.
Streets leading into powerful Hezbollah's stronghold in the southern suburbs of the Lebanese capital have been cordoned off, as guards in civilian clothes search a long line of cars.
Egypt's interim prime minister said his country could live without aid from the US as Washington and the EU review ties with Cairo amid a bloody crackdown on supporters of deposed president Mohamed Morsi.
US President Barack Obama on Tuesday congratulated Mali's new leader Ibrahim Boubacar Keita on his election victory and vowed to work with him as the country emerges from months of conflict.
Egyptian authorities said Tuesday they had arrested the supreme guide of the Muslim Brotherhood, as they stepped up a campaign to crush the party of ousted president Mohamed Morsi.
Long criticised for backing rebel groups across the Horn of Africa, Eritrea has said that ending its isolation is crucial for economic growth, blaming external threats for its slow development.
Thirty-six Islamist prisoners were killed Sunday during an attempted jailbreak, bringing to almost 800 the toll in five days of violence since Egypt moved to crush supporters of ousted president Mohamed Morsi.
German chancellor Angela Merkel said on Sunday that stopping arms shipments to Egypt would be an appropriate way to put pressure on the country as it is gripped by deadly violence.
Star sprinter Oscar Pistorius returns to court in South Africa on Monday, when prosecutors will indict him for murdering his girlfriend Reeva Steenkamp and confirm a trial date.