Story highlights ISIS displayed photos of captured US military equipment

The photos depict ammunition, fabric packs and possibly a shoulder-fired rocket launcher

Washington (CNN) US troops abandoned equipment and weapons after they came under fire from ISIS fighters, the Pentagon acknowledged Tuesday.

The Pentagon had previously indicated that photos of the military items paraded by ISIS on the Internet this weekend were likely American and lost during recent operations in Afghanistan.

On Tuesday, Brig.-Gen. Charles Cleveland, chief spokesman for the US-led anti-ISIS coalition, said US troops came under "effective enemy fire" in eastern Afghanistan on July 25.

This forced them to abandon their position and led to some of their equipment being captured and displayed in the ISIS photos distributed by ISIS, according to Cleveland.

The photos depict ammunition, fabric packs and possibly a shoulder-fired rocket launcher of the type used by US forces.

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