A Boeing 737 jetliner carrying 180 people crashed early Wednesday, local time, in Tehran, Iran, according to Iranian news agencies. The Fars News Agency reported a Ukrainian plane crashed due to technical problems soon after takeoff from Imam Khomeini airport. State-run news agency ISNA reported the same. The crash appears to be unrelated to Iranian missile strikes earlier in the night against bases in Iraq that house U.S. troops. Western news agencies have not been able to confirm details of the crash, but it could be another major blow to Boeing Co. BA, +0.04% , which has grounded its 737 Max fleet worldwide for nearly a year after two deadly crashes.