Two Syrian officials denied Friday that government forces had used chemical weapons against rebels, the first response from President Bashar Assad's regime to U.S. assertions that it had deployed such weapons during the 2-year-old civil war.
Ban has asked the head of the UN fact-finding mission on the alleged use of chemical weapons in Syria to visit New York
The White House said that Syria had likely used chemical weapons against rebel forces on a "small scale", during the conflict that has been raging in the country for two years.
UN Secretary-General Ban Ki-moon said the UN fact-finding team is "on stand-by and ready to deploy in 24-48 hours" to investigate the alleged use of chemical weapons in Syria.
The Syrian government has used chemical weapons in its conflict with the opposition forces.
At least 11 people were killed and 114 were wounded Wednesday afternoon after a 6.2- magnitude earthquake hit eastern Afghan provinces bordering Pakistan, authorities said.
While President Barack Obama has declared a "red line" over Syrian use of chemical weapons, US officials suggested on Tuesday.
More than 50 people were killed and over 100 others wounded in violent clashes and attacks across Iraq on Tuesday.
The US government on Tuesday condemned a bomb attack on the French embassy in Libya, calling it a "direct attack on all Libyans".
Libyan security officials say a car bombing has targeted the French embassy in the Libyan capital of Tripoli. Casualties are unknown.
US Secretary of Defense Chuck Hagel arrived in Israel on Sunday for talks with Israeli officials on issues including Iran's nuclear program and the Syrian crisis.