IFP - A senior Iranian security official has rejected US objection that Iran�s firing of missiles on ISIS positions in Syria has endangered US troops in Syria, asking what they were doing within three miles of terrorists in the region.

�What are ISIS and other terrorist groups doing within three miles of you?� Secretary of Supreme National Security Council Ali Shamkhani asked on Tuesday.

His comments came in reaction to a US defence official who told CNN that Iranian missiles that targeted Syria on Monday came within three miles of US troops in the country.

Pentagon spokesman Cmdr. Sean Robertson also said in a statement sent to VOA on Monday that �given the complex nature of the battle space, such strikes potentially jeopardize the forces who are actively fighting ISIS in Syria.�

The region, which lies east of the Euphrates River, is one of the last strongholds of ISIS in Syria.

The US says its presence in Syria is aimed at fighting ISIS, but Tehran says Washington is in fact using terrorists as a tool to advance its agenda.