President Barack Obama has said the US expects to find more evidence of the use of chemical weapons in Syria, but warned that rushing into the conflict could cause problems on the ground.
Obama added that the US is already engaged, on a day-to day basis, in trying to deal with the crisis
He said the US is investigating to "get a better handle on the facts inside of Syria".
Speaking at in press conference in Costa Rica, Obama added: "If there is the kind of systematic use of chemical weapons inside of Syria - we expect that we are going get additional, further evidence - at that point we will present that to the international community".
He went on to warn: "When we rush into things, when we leap before we look, then not only do we pay a price, but often times we see unintended consequences on the ground. It's important for us to do it right."
More top news
Hotting up for all of us in the next couple of days. As we drift into July and the heat and humidity levels rise.
Talks are ongoing because both sides realise that there is no good outcome to this referendum.
A former Birmingham City football star and his wife have been named as the latest British victims of the Tunisian beach massacre.