As UN inspectors finally reach the site where chemical weapons were allegedly used last week, the world is unsure how to respond to the dire situation.

Bashar Al-Assad's regime is accused of using chemical weapons in attacks that killed over 1,300 people in east and south-west Damascus. A UN convoy was sent to probe site.

This morning, US Senator John McCain said he would sidestep the UN convoy, stressing that a "serious" US response did not require UN corroboration, according to AFP.

A US official speaking anonymously said there were "strong signs" that chemical weapons were used by the Syrian regime, AFP reported.

US officials have expressed fears that evidence of the attack had already been destroyed, accusing Assad of using delaying tactics to hamper UN efforts.

On the other hand, Russian Foreign Minister Sergei Lavrov, denied that any sufficient evidence had been produced to accuse the regime, Reuters reported. He added that any military intervention in Syria without a UN mandate would violate international law.

British Prime Minister David Cameron cut short his holiday to mull a response to Syria with his international counterparts, AFP reported. He has already had a few conversations with some of them.

Any action to be taken must be reached by consensus from the international community. However, international players are not likely to agree on a military response or the type of involvement.

While an AFP report quotes analysts advancing that the "United States and its close allies will rely on long-range cruise missiles to target Assad's military assets," responses are still fundamentally undetermined.

Meanwhile, Iraq opposes the use of its airspace or territory to attack its war-torn neighbour.