Iran is developing a ballistic missile with a range of 3000 km with the support of the DPRK

Iran is working to develop a ballistic missile capable of carrying a nuclear warhead and covering 3,000 km, using designs received from North Korea.
Here's What We Know
According to the National Council of Resistance of Iran (NCRI), the development is being carried out at two sites under the control of the Advanced Defence Research Organisation (ADRO). At the Shahrud test site, experts are working on a nuclear warhead for the Ghaem-100 missile, which has a range of up to 3,000 km. There have been three successful launches of the missile, which were positioned as space missions.

The radius of a potential missile. Illustration: The Telegraph
The second facility, located near the city of Semnan, is used to develop Simorgh missiles based on North Korean technology. Much of the infrastructure at these sites is located underground to avoid satellite surveillance.
At the exhibition of missile technology achievements, Iran announced plans to launch new missiles, including Sarir in 2026. It also presented a model of a new liquid-fuel engine, which could be a copy of the Soviet RD-250.
Facilities of Iran's missile and nuclear programme. Illustration: The Telegraph
Iran currently has three potential nuclear warhead carriers: Jihad (1000 km), Khorramshahr (1700 km) and Etemad (2000 km). The latter was unveiled just a few days ago.
Source: The Telegraph