Japan and Iran will hold vice-ministerial talks next Monday and Tuesday in Tehran to "deepen mutual understanding," Foreign Ministry officials said Tuesday.

Deputy Foreign Minister Minoru Tanba will visit Iran to exchange views with his counterparts on their bilateral relationship and international affairs, the officials said. Japan has expressed concern over Iran's test of a medium-range missile last month because such a test could assist North Korea's missile development.

The Iranian government said its missile was produced without foreign assistance, but the missile is said to be based on North Korea's No Dong missile.