Iran displayed its Khorramshahr medium-range ballistic missile at a military parade in Tehran on September 22 and claimed that the missile was successfully tested the same day. However, video footage of the test that aired on Iranian state media was from a January launch that appears to have failed. Iran claims the Khorramshahr is capable of carrying multiple warheads and has a range of 2,000 km (1,250 miles). U.S. officials believe the range is double what Iran claims. The missile is based on North Korea's BM-25 Musudan missile.