British Prime Minister David Cameron announced on Thursday that UK military scientists have found traces of sarin gas in soil and clothing taken from victims treated near an alleged chemical weapons attack site in Syria. Cameron made the announcement upon arrival in St. Petersburg, Russia for the G20 summit.

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"We have been looking at some samples taken from Damascus," Cameron told the BBC, "which further shows the use of chemical weapons."

The announcement of the evidential discovery was followed by Cameron's assurance that the UK would be heavily involved in the humanitarian aid front of the Syrian conflict.

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"Britain will be leading the argument on humanitarian aid," Cameron said. "Britain will be one of the leaders in bring forward plans for a peace process for Syria."

Cameron also indicated that he believed that the United States should follow through with its initial plans for a military strike against Syria and that doing nothing would "send an appalling signal to President Assad and also to dictators elsewhere."

Read more about Cameron's comments regarding Syria at BBC News.

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