A team of UN inspectors left their Damascus hotel in a convoy of cars Saturday following the conclusion of their probe into the alleged use of chemical weapons by the regime.
Iranian President Hassan Rowhani on Saturday pointed to the use of chemical weapons in Syria, three days they allegedly killed hundreds of people in attacks near Damascus.
The use of chemical weapons in Syria would constitute a "crime against humanity", adding there was "no time to lose" in investigating an alleged attack which the opposition says killed hundreds.
German chancellor Angela Merkel said on Sunday that stopping arms shipments to Egypt would be an appropriate way to put pressure on the country as it is gripped by deadly violence.
Syrian opposition leaders on Thursday pressed US Secretary of State John Kerry to arm rebel groups and said there could be no peace talks while government forces kill civilians.
Argentine ex-president Carlos Menem was sentenced to seven years in prison Thursday for organizing contraband arms shipments to Croatia and Ecuador during his tenure.
More than 60 countries on Monday signed a landmark conventional arms trade treaty, but the United States held back from joining the first wave of signatories.
The European Union and Russia kick off a two-day summit on Monday overshadowed by rows over Brussels' decision to lift its arms embargo on the Syrian rebels and resolve to loosen Moscow's grip on EU natural gas supplies.
British Foreign Secretary William Hague said Thursday that Russian weapons supplies to the Syrian regime were impeding the search for a peaceful resolution of the conflict.
Chinese hackers have gained access to secret designs for a slew of sophisticated US weapons programs, officials said Tuesday, possibly jeopardizing the American military's technological edge.
The United States said Tuesday it supports the European Union's decision to ease an arms embargo on Syria as a means of showing support for rebels despite America's own refusal to provide weapons.