A Pentagon report states that China, Iran and North Korea are aggressively developing nuclear missiles capable of striking the United States and proliferation among these nations of technology is rife, the British newspaper Daily Mail reported Friday.

The Department of Defense report, the findings of which were first published by the Washington Times, confirms the assessment of US intelligence agencies that Iran is set to test an intercontinental ballistic missile as early as 2015. 

"Iran has ambitious ballistic missile and space launch development programs and continues to attempt to increase the range, lethality, and accuracy of its ballistic missile force," states the assessment produced by the Department of Defense's National Air and Space Intelligence Center. 

The report also determines that the number of Chinese land-based nuclear missiles able to hit the US "could expand to well over 100 within the next 15 years" and that North Korea has already deployed its new road-mobile intercontinental ballistic missile, or ICBM, known as the Hwasong-13.