Syrian President Assad's allies say U.S. attack crosses "red lines"

US Navy guided-missile destroyer USS Porter sails in the Bosphorus on its way to the Mediterranean Sea in Istanbul Turkey

"We deplore Russia's continued defence of the Assad regime even after the chemical weapons attack on innocent civilians".

He stopped short of accusing Russian Federation of being directly involved in the planning or execution of the attack, saying he had not seen "any hard evidence" to suggest the nation was an accomplice to Syrian President Bashar al-Assad.

Next, Tillerson heads to Europe to gather with the foreign ministers of the other Group of 7 nations before venturing on eastward to become the first Trump Cabinet member to visit Moscow - and possibly meet with Russian President Vladimir Putin. The Russian government has been implicated in numerous attacks against Syrians opposed to Assad's rule - something Moscow adamantly denies.

"We, as Syria's allies, will increase our military support toward Syria and support its people in many other ways", the statement said. "In fact, we were prepared to do more two days ago", McMaster said.

Assad, in an interview before the USA attack, made clear that so-called local "reconciliation" agreements remain central to his strategy, along with military action. Johnson's decision comes as the USA appeared to back away from any wider military involvement in the Syrian conflict, less than 24 hours after launching Tomahawk missiles at a regime airbase.

Sir Michael said Mr Assad must depart and the search for stability begin.

"It could be that Russian Federation is knowingly allowing chemical weapons to remain in Syria".

"Moscow needs a dialogue with London not more than it (Britain) needs it (Russia)", the Foreign Ministry said.

Secretary of State Rex Tillerson said during a recent interview the first priority in Syria is to defeat the Islamic State in Iraq and Syria (ISIS).

"Using a deadly nerve agent, Assad choked out the lives of helpless men, women and children", Trump said.

The figures come from Idlib's opposition-run health authority. The warships USS Porter and USS Ross in the Mediterranean Sea launched dozens of Tomahawk missiles at the Shayrat air base, which the Pentagon says was involved in the chemical weapons attack. At least six people are reported to have died.

"The world is waiting for the Russian government to act responsibly in Syria".

"All the external parties and their forces must withdraw from Syria".

Tillerson told Dickerson that the administration hopes to negotiate an end to the Syrian Civil War without having to resort to further military escalation.

Damascus denies carrying out the chemical attack that provoked the US response.