Israel advised its citizens to leave Turkey citing the potential for jihadist attacks.
Iran fired two more long-range ballistic missiles on Wednesday as it continued military tests in defiance of US sanctions and fresh warnings from Washington.
South Korea on Thursday rejected North Korean warnings to call off scheduled joint military exercises with the United States and vowed "severe" retaliation to any provocation from Pyongyang.
Kazakhstan national weather service KazHydroMet has issued a extreme cold weather warning for 11 Kazakhstan Oblasts for January 4-6.
A smartphone app designed to give early warning of earthquakes could be ready as early as next year, according to scientists at the World Science Forum in Rio de Janeiro.
A high wind warning has been issues for 7 regions of Kazakhstan.
India issued a red alert as a massive cyclone bore down on the east coast Saturday, forcing the evacuation of hundreds of thousands of people.
The United States launched a joint naval drill Thursday with South Korea and Japan despite dire warnings of a "horrible disaster" from North Korea.
The United Nations warned Monday that inspectors face a year-long mission of unprecedented danger in trying to destroy Syria's chemical weapons arsenal, as rebels launched a major offensive.
North Korea on Tuesday warned the United States of a "horrible disaster" and put its troops on alert over a massive joint naval drill involving a nuclear-powered US aircraft carrier alongside South Korean and Japanese vessels.
Japanese Finance Minister Taro Aso on Friday urged the United States to resolve political gridlock in Washington, warning of grim "consequences" for the global economy if it leads to a debt default.
The US Treasury warned Thursday of a disastrous outcome if Congress's refusal to raise the country's borrowing ceiling forces it to default on obligations.
Syrian leader Bashar al-Assad warned Monday that Western military strikes risked igniting a "regional war" in the "powder keg" of the Middle East, in an interview with French newspaper Le Figaro.
A senior Iranian official warned in Damascus on Sunday that US interests in the region would be at risk if Washington launched a military strike against his country's ally Syria.
Washington warned Syria it would face action over the "moral obscenity" of a gruesome chemical weapons attack, as UN inspectors braved sniper fire to gather evidence about the incident.
Brazil warned US Secretary of State John Kerry on Tuesday that failure to resolve the row over Washington's electronic spying could sow mistrust between the two countries.
Prime Minister Dmitry Medvedev on Friday issued an official reprimand to the head of Russia's space agency Roscosmos after a series of embarrassing rocket launch failures.
The UN sounded the alarm Saturday about the plight of women and children in Syria's Homs, urging all parties in the conflict to enable access to some 400,000 trapped civilians.
Iran's supreme leader Ayatollah Ali Khamenei warned Sunday that Washington was "not trustworthy", after former US officials and lawmakers urged diplomacy with the Islamic republic's incoming president Hassan Rowhani.
Iran is moving "closer and closer" to building a nuclear weapon and Israel may have to act before the United States does.