Iran must restore international confidence in its nuclear program, South Korea said Thursday after the Middle Eastern nation tested a long-range missile. The US and many of its allies have accused Iran of using its nuclear program as a cover for weapons development. Iran denies the charge, saying it is focused on building reactors to generate electricity. Iranian Foreign Minister Manouchehr Mottaki "emphasized the Iranian nuclear program is being pushed for peaceful purposes" in talks in Seoul with South Korean counterpart Yu Myung-hwan, South Korea's Foreign Ministry said. Yu replied that it was important for Iran to win confidence in its nuclear program, the ministry said in a statement.