Eight people were killed and five wounded Friday when gunmen opened fire on two vehicles carrying Shiite Muslims in Pakistan's lawless tribal region in suspected sectarian violence, officials said.

The vehicles were ambushed in Bagan town of Kurram district, near the Afghan border, and the victims "were all Shiite Muslims", a security official said.

At least 75 people were killed when a strong earthquake struck Myanmar, officials said Friday, with fears that the toll would rise as news filtered through from remote areas still cut off.

Tremors were felt as far away as Bangkok, almost 800 kilometers from the epicenter, Hanoi and parts of China during the earthquake on Thursday, which the U.S. Geological Survey (USGS) measured at magnitude 6.8.

A magnitude-7.0 earthquake struck eastern Myanmar Thursday, the U.S. Geological Survey reported.

The epicenter, in the hills of Myanmar close to the borders with Thailand and Laos, was only 10 kilometers deep.

A U.S. soldier pleaded guilty Wednesday to targeting Afghan civilians for execution, under a plea bargain for his part in a rogue U.S. Army unit in southern Afghanistan.

Corporal Jeremy Morlock, who is set to testify against four co-accused, admitted murdering or helping to kill three men, and using illegally obtained Afghan weapons to make it appear that the victims were enemy combatants.

South Korea launched a major live-fire drill Thursday near the tense land border with North Korea in a show of strength marking the first anniversary of the sinking of one of its warships.

Tanks, armored personnel carriers, artillery pieces, helicopters and jets took part in the drill at the Pocheon range, 30 kilometers south of the border, the defense ministry said.

A suicide car bomb targeting a police station on Thursday killed five people and wounded 25 others in a restive northwestern Pakistani town, police said.

A police officer and four civilians died in the attack in Doaba town in Khyber-Pakhtunkhwa province, while part of the police station was demolished and at least 10 houses damaged, senior local police official Abdul Rashid said.

Guatemalan President Alvaro Colom said Tuesday his decision to divorce his wife so she can run for president is a "real sacrifice" for the good of the country.

"We are making a real sacrifice, and it will be a real divorce, with physical separation," he said in an interview with Mexico's Televisa.

Hillary Clinton said Tuesday she planned to stay on as secretary of state into U.S. President Barack Obama's second term, presuming he wins re-election, to help with the transition.

"I will stay until the beginning of the next term because I know it takes a while for people to get appointed and confirmed," Clinton told ABC News in an interview.

Afghanistan said Tuesday its forces would take over security in areas including the Helmand capital from NATO this summer, launching a transition as foreign troops plan an exit by the end of 2014.

Afghanistan will notably take "full security responsibility" for most of Kabul province, including the capital, and Lashkar Gah, the capital of the restive southern province of Helmand, President Hamid Karzai said.

Guatemalan President Alvaro Colom and his wife Sandra Torres de Colom have filed for divorce to avert a constitutional flap over her eligibility to run for the presidency, officials said Monday.

The divorce papers were filed March 11 in family court, according to Edwin Escobar, a spokesman for the country's Supreme Court.