Iran has no intention to increase the range of its missiles, but will continue working on its satellite technology to improve accuracy, the secretary of Iran’s national security council said on Tuesday.

“Iran has no scientific or operational restriction for increasing the range of its military missiles, but based on its defensive doctrine, it is continuously working on increasing the precision of the missiles, and has no intention to increase their range,” Ali Shamkhani, a close aide to Iran’s Supreme Leader Ayatollah Ali Khamenei, was quoted as saying by state broadcaster IRIB.

Iran’s minister of defence said on Tuesday that the nation’s missile capabilities were non-negotiable, dismissing a call by European countries and the United States that its missile technology should be curbed.