US Secretary of State John Kerry has said that new evidence has tested positive for use of sarin gas in the Syrian chemical attacks, Reuters reports, citing US broadcaster CNN.
He also voiced confidence that Congress "will do the right thing" on President Obama's request for approval of a unilateral military strike against the Syrian regime.
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Georgina Callander's family said the government must "opens its eyes" in the wake of the attack.
Thunderstorms affect many throughout the rest of the Bank Holiday weekend.