The US State Department said that Russia and Syria are attempting to "sanitize" the site where the chemical weapons attack is said to have taken place.
Despite Western airstrikes, the Syrian government continued its advance, with Russian and Iranian aid.
Yusuf Jabreen: US Syria strike is part of an “American attempt to dictate its plans in the region, including Trump’s declaration on Jerusalem.”
Russian Foreign Minister Sergei Lavrov denied that Moscow had interfered with any evidence.
Israel, which has often struck Syrian army locations during its neighbor's seven-year civil war, has neither confirmed nor denied mounting the raid.
An analysis on what the repercussions of the US strikes in Syria might mean for the use of chemical weapons in smaller states.
Haley acknowledged regional concerns and said, “We all know our work in Syria is not done.”
Russia, which is helping Assad fight rebel forces opposed to his rule, immediately condemned the strikes.
Jerusalem remains concerned that the US and its partners are turning a blind eye to Iran's attempts to entrench itself in the country.
Not tolerating chemical weapons is an important statement, but from Israel’s position does not go far enough.