Morning Brief: Devastating bombing raises fears in Baghdad

Asia

• Four U.S. troops were killed in a helicopter collision in Afghanistan. 
• South Korea has agreed to give a small amount of food aid to North Korea for the first time in two years. 
• Mongolia's prime minister wants to resign for health reasons. 

Middle East

• IAEA inspectors reportedly visited the recently disclosed Iranian nuclear plant at Qom. 
• More than 18 people were arrested after rioting at Jerusalem's Temple Mount. 
• The Palestinian chief negotiator says no talks with Israel are likely in the near term. 

Europe

• The war crimes trial of former Bosnian Serb leader Radovan Karadzic has begun, despite his refusal to appear. 
• A prominent opposition leader was murdered in Ingushetia. 
• Scottish police have opened a new investigation of the 1988 Lockerbie bombing. 

Africa

• Nigeria's MEND rebels declared an indefinite ceasefire.
• Tunisian leader Zine El Abidine Ben Ali was overwhelmingly reelected, and threatened legal action against anyone who said the vote was unfair. 
• Human Rights NGOs are criticizing Nigeria's decision to invite President Omar al Bashir of Sudan to an African Union meeting. 

Americas

• Uruguay's presidential election will go to a runoff after neither candidate earned over 50 percent of the vote.
• Venezuela has increased security on the Colombian border after a series of murders. 
• President Barack Obama reportedly asked Spain's prime minister to pass along a message to Cuba's government, urging democratic reform.