Iran Threatens to Violate Nuclear Deal’s Limits on Uranium Enrichment

Iran announced on Monday that it would soon violate a central element of the landmark 2015 nuclear deal, which the United States withdrew from last year, unless it received assurances that Europe will combat punishing American sanctions.

Iran is on track to exceed the deal’s limits on nuclear fuel within days, the country’s Atomic Energy Organization announced. The agency also left the door open to an “unlimited rise” in Tehran’s stockpile of enriched uranium, potentially triggering another flash point with Washington just days after attacks on oil tankers stoked tensions...