Islamic State forces on Thursday fired a shell that may have contained a mustard agent onto a military base in northern Iraq used by US and Iraqi troops, CNN reported, citing several US officials.
No US troops were hurt or have displayed symptoms of exposure to a mustard agent.
One official said the agent had “low purity” and was “poorly weaponised,” CNN reported.
A second official called it “ineffective,” the network said.
Two field tests were conducted after the troops saw what they thought was a suspect substance. The first test came back positive but the second test was negative. – (Reuters)
