Iran has built a third underground ballistic missile production factory and will keep developing its missile programme, the semi-official Fars news agency reported Thursday.
The development comes following the US-Arab summit where Iran was singled out by the US and Arab countries and is likely to fuel tension with Arab neighbours and Washington.
"Iran's third underground factory has been built by the Guards in recent years ... We will continue to further develop our missile capabilities forcefully," Fars quoted the head of the Republican Guard’s airspace division, Amirali Hajizadeh, as saying.
Since taking office in January, US President Donald Trump has imposed new sanctions on Iran in response to Tehran's recent missile launches, putting Tehran "on notice".
"It is natural that our enemies America and the Zionist regime (Israel) are angry with our missile program because they want Iran to be in a weak position," Hajizadeh said.
In retaliation for the new US sanctions, Iran had added nine American individuals and companies to its own list of 15 US companies for alleged human rights violations and cooperation with Israel.