State Department spokeswoman Heather Nauert says the launch also violates the spirit of the 2015 nuclear deal.
Iranian state media have said Iran successfully launched a “Simorgh” rocket that can carry a 550 pound (250 kilogram) satellite. The State Department says that type of technology is inherently designed to be able to carry a nuclear payload.
The Security Council resolution that enshrined the nuclear deal discourages but doesn’t explicitly prohibit Iran from launching ballistic missiles that could carry a nuclear warhead. Despite the deal limiting Iran’s nuclear activity, the U.S. has continued to punish Tehran for developing ballistic missile technology.