U.S. Secretary of State John Kerry says the actions of the Syrian government in the days after a purported chemical weapons attack was not the behaviour of a government with nothing to hide, noting that additional information about what happened in Syria will be coming out in coming days.
A United Nations inspection team is on the ground in Syria, sent to determine whether or not chemical weapons were used but not who used them.
Kerry said the number of victims, the reported symptoms of those who were killed or injured and the firsthand accounts from humanitarian organizations on the ground all strongly indicate that chemical weapons were used.
"What is before us today is real," Kerry said. "And it is compelling."
Kerry noted that it's known that the Syrian regime "maintains custody" of chemical weapons and has been "determined to clear the opposition" from the areas where the attacks took place.
He also took issue with the manner in which the regime responded to UN efforts to inspect the suspect sites, noting that the regime launched shells on the area and refused to allow the UN investigators access to the site of the attack that possibly could have exonerated the government.
UN investigators were eventually permitted access, but delays continued earlier today, when inspectors who were finally granted access to the site were delayed by sniper fire near Damascus. The UN inspection team nevertheless proceeded towards a rebel-controlled western suburb to meet with doctors and victims of last week's purported chemical attack.
The UN inspectors have since returned to their hotel in central Damascus, after having spent three hours collecting samples from the site in the outskirts of the capital.
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UN Secretary General Ban Ki-moon said the team visited two hospitals and interviewed witnesses, survivors and doctors while collecting samples around the Rawda Mosque. Ban said the team was committed to completing its mission despite "very difficult circumstances," referring to their brush with sniper fire.
Angela Kane, the under-secretary general for disarmament, briefed him on the incident.
"I have instructed Angela Kane to register a strong complaint to the Syrian government and authorities of opposition forces so that this will never happen and the safety and security of the investigation teams will be secured from tomorrow," Ban said.
Although there were no injuries from the assault on the UN inspectors, CBC’s Melissa Kent reported that "the lead vehicle was so badly damaged … the team had to turn around and return to the government checkpoint to exchange vehicles.”
The Syrian government and opposition fighters continue to trade blame over who was responsible for the sniper attack.
Syrian President Bashar al-Assad had earlier pledged that a ceasefire would be in place while the investigators worked.
Intimidation tactics are nothing new to UN weapons investigators in a foreign land, according to former UN arms investigator Tim Trevan.
"Clearly this is intimidation against the team," Trevan told CBC News from Washington. "It's something teams have to deal with, confrontation situations like this one."
Trevan added that although it's difficult to say whether the sniper was with the opposition or government forces, "the suspicion must be that this is the Syrian regime."
"They want to show the international community they're willing to go ahead and co-operate, and at the same time ensure it doesn't happen by subjecting the convoy to fire, making the inspection site itself too dangerous to visit," Trevan said.
The UN's stated mission is only to determine whether chemical weapons were used, but not to determine who used them.
However, the United States strongly suspects that Assad's regime was behind the Aug. 21 attack near Damascus. That suspicion is supported by the international aid group Doctors Without Borders, which reported that 355 people were killed in an artillery attack that also included the purported use of a toxic chemical weapon.
Its numbers are also consistent with those of Syrian activists and opposition leaders, who have said that between 322 and 1,300 people were killed in the alleged chemical attack.
Canadian Foreign Affairs Minister John Baird reiterated that Canada is still committed to a peaceful solution to the violence.
"Canada believes the only way to help the bloodshed in Syria is through a political solution," he told reporters today in Ottawa. "However, we understand that this solution is becoming more and more difficult as the crisis enters a very dangerous new phase."
Baird has been speaking with his French and British counterparts about the Syria situation and expressed a shared "outrage" over reports about possible chemical attacks, according to a spokesperson from his office.
Syrian-Canadians have been calling on Ottawa to participate in an international action to stop the violence and Baird has acknowledged that the delay in allowing UN inspectors to do their work will likely impair their investigation.
Baird also heaped more diplomatic pressure on Russia on Monday, criticizing the nation for using its veto on the UN Security Council to block resolutions designed to punish Syria with sanctions.
"The complete obfuscation of Russia, the Security Council and the United Nations needs to end, and they need to become part of the solution," Baird said.
'Too late to be credible'
Although Syria has said that a UN team was welcome to visit the site, a senior White House official dismissed the deal with inspectors as "too late to be credible."
British Foreign Secretary William Hague added that it was likely that artillery fire at the site would have destroyed much of the evidence.
Meanwhile, a defiant Assad claimed foreign leaders were making excuses so they could intervene militarily in Syria, telling a Russian newspaper the accusations that his troops used chemical weapons were "politically motivated."
"This is nonsense," Assad was quoted as saying in the interview with Russia's Izvestia daily. "First they level the accusations, and only then they start collecting evidence."
The UN team's conclusions could have a dramatic impact on the trajectory of Syria's civil war as France, Britain, Israel and some U.S. congressmen urge swift military action against Assad's regime.
Meanwhile, Germany has indicated willingness for the first time to support a possible military response in Syria.
Chancellor Angela Merkel said Syria "must be punished" if UN inspectors are able to confirm the use of chemical weapons by Assad's forces.
Turkey, another of Assad's harshest critics, said it would back an international coalition to move against Assad if sanctions against the government fail.
However, Syria still has a staunch ally in Russia.
Russian Foreign Minister Sergei Lavrov accused Western powers of having hawkish tendencies despite a lack of evidence to show the Syrian government was behind the purported chemical attack.
The countries calling for action "cannot provide evidence" of such an attack, Lavrov said in a televised conference on Monday, adding that talk of military action is undermining efforts to resolve the crisis peacefully.
With files from The Associated Press, Reuters