Iran has "great means of deterrence" to face any possible attack over its nuclear program, the country's Interior Minister Mostafa Mohammad Najjar warned Tuesday.

"We are highly confident about our capacities, and our great means of deterrence," he said during a visit to
Doha , where he signed a security agreement between Iran and Qatar --a major regional U.S. ally.

"We do not feel in danger...If someone tries to endanger our national security, we will retaliate and make him regret his action," he added.

Iran is locked in a standoff with the West over its nuclear program which is suspected of being aimed at developing an atomic bomb, while Iran insists it was for peaceful purposes.

Israel has not ruled out striking Iran 's nuclear sites.

Najjar said Tuesday that
Iran was working on strengthening relations with its Arab neighbors in the oil-rich Gulf to "ensure security and stability in the region."

His country's security agreement with
Qatar focuses mainly on the issue of combating crime, drug trafficking and money laundering, as well as the protection of borders.

Qatar , which maintains good relations with Iran , hosts the U.S. Al-Udeid air base and As-Sailiyah camp, which is the headquarters of the U.S. Central Command since 2002.