Iran’s elite Islamic Revolutionary Guards said on Thursday that the country’s ballistic missile programme would accelerate despite pressure from the United States and European Union to suspend it, the semi-official Tasnim news agency reported.

In a major US policy shift, President Donald Trump last Friday refused to certify Tehran’s compliance with a landmark 2015 nuclear deal, signalling he would take a more aggressive approach to Iran over its ballistic missile programme.

“Iran’s ballistic missile programme will expand and it will continue with more speed in reaction to Trump’s hostile approach towards this revolutionary organisation (the Guards),” the Guards said in a statement published by Tasnim.

The Trump administration has imposed new unilateral sanctions targeting Iran’s missile activity. It has called on Tehran not to develop missiles capable of delivering nuclear bombs. Iran says it has no such plans.

Tehran has repeatedly pledged to continue what it calls a defensive missile capability in defiance of Western criticism.