The government used its platform at the U.N. to tell the insurgents: "Join us in peace, or we will continue to fight."
Four people were injured in the attack and, while there were no deaths, it marked the first known chemical attack in a year.
Foreign Minister Walid al-Moallem says the U.S. and Turkey maintain an illegal military presence in northern Syria.
The U.N. documented 1,366 civilians killed and 2,446 wounded in its latest report on Afghan noncombatant casualties.
The memoir will offer "deeply personal" insights and the "challenges" she faced as a woman during her time in government.
U.S. peace envoy Zalmay Khalilzad is currently holding talks with the Taliban in Qatar, which are now in their second week.
Venezuela's president had given U.S. diplomats three days to leave the country, but the White House said it wouldn't obey.
The ceasefire in Yemen remains shaky, with both sides accusing each other of violations in the country's Hodeida province.
U.S. Secretary of State Mike Pompeo on Wednesday urged the United Nations to tighten restrictions on Iran's missiles.
The U.S. and NATO warned Russia of possible consequences for the attack upon and seizure of three small Ukrainian Navy ships.