Originally posted by the Voice of America. Voice of America content is produced by the Voice of America, a United States federal government-sponsored entity, and is in the public domain. Syrian Forces Again Used Chemical Weapons, US Says VOA News Syrian forces used chemical weapons during an attack in Latakia province in May, U.S. Secretary of State Mike Pompeo said Thursday. Although no one was killed in the chlorine gas attack, Pompeo said the U.S. "will not allow these attacks to go unchallenged nor will we tolerate those who choose to conceal these atrocities." .