Mattis said he was aware of, an awful lot of reports about chlorine gas use or about symptoms that could be resulting from chlorine gas
The strikes carried out on Sunday were the latest against jihadists and rebels in a week-old regime offensive on Idlib
The Britain-based Syrian Observatory for Human Rights told AFP that 18 people were killed by Russian strikes in the town of Misraba
"I have taken a decision: a significant part of the Russian troop contingent located in Syria is returning home to Russia," said the Russian President
IS captured the city in a counter-attack that was launched a week ago
State news agency SANA said the army had surrounded the town from three sides
Syrian Observatory for Human Rights said the deaths resulted from air strikes targeting Al Mayadeen
Turkey and Russia are deeply entangled in the war in Syria
The attack was a desperate attempt to lift the morale of the terrorist groups, says Syrian army
The Turkish attacks killed at least 20 Syrian Kurdish fighters in the People's Protection Units
Our impression is that the West, mainly the US, is hand-in-glove with the terrorists, he said
The strike occurred south of Tabqa on April 11
ISIS is satanic, cruel and amorphous; it disseminates its ideology through the internet
Military strike marked swift reversal for Trump who said US should stay out of years-long civil war
Says US will no longer wait for Syrian President to use chemical weapons without any consequences
Rebels of the Free Syrian Army described attack as a turning point in 'eliminating the impunity'
Syria termed the missile barrage American aggression and held consultations with Russia and Iran
The fatality toll rose to at least 75 people, including 20 children
Most IS combatants withdrew from Palmyra, according to a war monitoring group
Some had been shot and others beheaded