"If the Security Council is serious about holding Iran accountable and enforcing our resolutions, then at a minimum we should be able to deliver a unanimous condemnation of this provocative missile test", she said.
Britain on Tuesday accused Iran of disregarding a United Nations resolution after the Security Council debated whether a purported ballistic missile test three days ago could even amount to a breach of Tehran's nuclear deal with world powers.
On Saturday, US Secretary of State Michael Pompeo said that Tehran had tested a medium-range ballistic missile in breach of the United Nations resolution.
He urged the country to "cease these activities" that violate the Iranian nuclear deal, despite the U.S. withdrawing from the landmark accord this May.
"We would like to see the European Union move sanctions that target Iran's missile program", Hook told reporters aboard Pompeo's plane as he traveled to Brussels for a North Atlantic Treaty Organisation meeting.
That resolution calls on Iran to refrain from testing missiles capable of carrying a nuclear weapon.
Qassemi also criticized Western states for their double-standard policies and said he regretted that they take such belligerent stances on Iran's peaceful defence programme.
Iran also carried out another test last week that was strongly condemned by Washington. But the separate continued development of Iran's missile programme is risky and provocative.
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As a conventional defensive capability, Iran's ballistic missile program is created to be exclusively capable of delivering conventional warheads and, as a result, none of Iran's ballistic missiles are created to be capable of delivering nuclear weapons.
The United States decided in May to withdraw from the 2015 nuclear deal and reimpose sanctions on Iran, to the dismay of its Europeans allies.
The Security Council adopted the resolution, which endorsed the implementation of the Joint Comprehensive Plan of Action, as the Iran nuclear deal is formally known, in 2015.
Tehran has made no secret of its vigorous pursuit of a greater regional presence, and Saturday's missile launch is arguably emblematic of this effort.
"Iran is among the world's top powers in building missiles, radars, armoured vehicles and unmanned aerial vehicles", Hatami told official IRNA news agency, reports Xinhua.
"This is a grave and escalating threat and we need to restore deterrents against Iran's missile programme".
Tehran's foreign ministry said on Sunday that its missiles arsenal does not break global law and is purely defensive in nature, despite the USA slapping more sanctions on Iran over the programme. The comparatively weak language has led to some differences of interpretation, and these were highlighted on Tuesday when the Security Council held a closed-door meeting at the request of the French and British governments, both of which have previously expressed concern over the Iranian ballistic missile program and the regime's destabilizing influence over the broader region.
Pompeo lamented that conventional wisdom had concluded that "the more treaties we sign, the safer we supposedly are" and "the more bureaucrats we have, the better the job gets done".