US-Iran negotiations to end the war came under severe additional pressure on Sunday after the IRGC announced that Washington's strikes over the previous two days had "violated Clause 1 of the Islamabad Memorandum of Understanding" and "will result in a total halt of all processes."
"From now on, violating vessels will be dealt with more strongly than in the past and will face a crushing response," the IRGC added in a statement shared by Iranian state-run media.
