The US military launched air strikes against the Islamic State (ISIS) chemical weapons factory in Iraq this week and destroyed 110 of the organization's oil trucks within a week.

According to a CNN report on the 13th local time, U.S. Air Force Central Command Commander Jeffrey Harrigian said that the chemical weapons factory is located near Mosul and was originally a pharmaceutical factory.

Harrigian did not disclose the specific chemical weapons produced by the factory, but media speculated that they might be chlorine and mustard gas.

Harrigian said at a press conference that the existence of the chemical weapons factory "once again demonstrates ISIS's contempt for international law."

A report released by United Nations investigators in August showed that both government forces and ISIS used chemical weapons during the Syrian war. The Syrian government forces have used chlorine gas at least twice, while ISIS has used mustard gas.

In addition to building their own chemical weapons factories, Syrian opposition soldiers also pointed out that ISIS had previously snatched chemical weapons that had not yet been transferred from the retreating government forces.

Harrigian said that in the operation against the chemical weapons factory, the US military used 12 bombers, including F-15s and B-52s, to bomb 50 targets at the site.

In addition, the US-led coalition forces destroyed more than 110 ISIS oil trucks last week; from the beginning of September to the present, the coalition forces also destroyed 42 oil trucks near ISIS's "capital" Raqqa.

Harrigian said that before launching a general offensive on Mosul and Raqqa, the coalition forces will continue to use air power to bomb key ISIS strongholds.

He also pointed out that ISIS is using "small drone equipment" and the next focus of the coalition army is to "clear these drones from the battlefield."

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