A former CIA spy claims North Korea plans to carry out another nuclear bomb test after the start of the year.

The former U.S. spy wrote on Fox News online that North Korea and Iran have agreed on a joint nuclear test in North Korea, with a substantial financial reward for the Kim Jong-il government.

The agent quoted reports from inside Iran and said that a team of Iranian nuclear scientists have been sent to North Korea.

The two governments are reportedly continuing to collaborate on the missile projects and are also working together on Iran’s nuclear bomb development.

According to the agent, this relationship has not only led to data sharing on previous nuclear tests by North Korea, but has played a part in Iran’s capability to build more advanced centrifuges that produce more enriched uranium than first-generation models.