At least 17 people were killed in a suicide attack on a market in Pakistan's northwestern town of Kohat on Wednesday, the local police chief said.

The top U.S. military officer on Wednesday warned North Korea that the U.S. commitment to helping South Korea defend itself is "unquestioned," even as he pressed China to use its influence to push its ally Pyongyang to change.

Navy Adm. Mike Mullen, the U.S. chairman of the Joint Chiefs of Staff, called recent North Korean aggression, including an artillery attack last month that killed four South Koreans, "belligerent, reckless behavior." He said China appeared unwilling to use its enormous leverage to rein in the North.

A double suicide bombing killed at least 40 people in Pakistan's tribal belt on Monday, attacking pro-government community leaders and members of an anti-Taliban militia, officials said.

The bombers targeted a local administration compound in Ghalalnai, the main town in the tribal district of Mohmand, about 175 kilometers (110 miles) northwest of the federal capital Islamabad and near the Afghan border.

Mimix, a technology that translates spoken and written words into sign language backed by a Lebanese team, is now in a standoff against Brazil's Mindle to win the Global Title.

Mimix won the regional award during YallaStartup weekend in Beirut. It then competed against 13 global cities and won the Global Startup Battle 2010.

As many as 200 people may have been buried in a landslide Sunday that swept over 10 houses near Medellin, Colombia's second largest city, Red Cross relief workers said.

"The initial count is that there may be 150-200 people considered missing. So far, we have rescued three alive," said Cesar Uruena, a Red Cross operations deputy director.

Firefighters have extinguished a grassland blaze in a remote mountainous region in southwest China that killed at least 22 people and injured another four, state media said Monday.

The wild fire broke out in Daofu County in Sichuan province -- at the edge of the Tibetan plateau -- at about noon Sunday and was initially brought under control three hours later, the official Xinhua news agency said.

South Korea's military began a major live-fire exercise Monday amid high tensions sparked by North Korea's deadly bombardment last month, as Washington pressed Beijing to curb its unruly ally Pyongyang.

The South, smarting over the unprecedented shelling of a civilian area, dismissed claims by the North that the five-day drill could spark war.

U.S. Secretary of State Hillary Clinton said on Friday that American concerns over Iran's suspected atomic weapons program are shared by the Islamic republic's neighbors.

Speaking to journalists about talks due to start between major powers and Iran on Monday, Clinton said, "There is no debate in the international community, and perhaps the Iranians will engage seriously ... on what is a concern shared by nations on every continent, but most particularly right here in the region.

The whistleblower website WikiLeaks was back on line Friday with a new Swiss address -- wikileaks.ch -- six hours after its previous domain name -- wikileaks.org -- was shut down.

"WikiLeaks moves to Switzerland," the group declared on Twitter, although an Internet trace of the new domain name suggested that the site itself is still hosted in Sweden and in France.

Flooding and landslides unleashed by torrential rains have killed at least 21 people in Venezuela, forced thousands from their homes and idled an oil refinery.

The death toll rose on Tuesday as authorities confirmed eight additional deaths in Caracas and nearby states. Vice President Elias Jaua said there had been 21 deaths nationwide since Thursday and about 5,600 people fled their homes.