Iran's Revolutionary Guard Navy warned Saturday that any attack on Iranian oil tankers or commercial vessels would be met with a heavy assault on U.S. assets.

The threat escalates tensions in the Strait of Hormuz as both nations navigate a volatile military conflict. A miscalculation in the Gulf region could disrupt global energy markets and jeopardize existing diplomatic efforts to stabilize the area.

The warning follows a series of military strikes. According to reports, the United States has struck two Iranian oil tankers [1]. One such incident occurred when the U.S. military fired on an Iranian oil tanker on May 6, 2026 [2].

Reports on the current state of hostilities are mixed. Some sources said the cease-fire appears to be holding [3], while others said that new strikes and missile attacks have continued, suggesting the truce is fragile [4].

Diplomatic efforts to resolve the crisis have seen conflicting outcomes. Some reports said that talks yielded no agreement, which led to a decision to block ships from Iranian ports [5]. However, other sources said that Pakistan-mediated talks remain active with the goal of ending the conflict [6].

Internal security measures have also tightened within Iran. The government has arrested approximately 12 people alleged to be linked to the Revolutionary Guard [1].

The IRGC Navy's statement serves as a deterrent against further U.S. interference with Iranian shipping. The Revolutionary Guard said the assault on U.S. assets would be heavy if commercial vessels continue to be targeted.

Any attack on Iranian oil tankers or commercial vessels would be met with a heavy assault on U.S. assets.

The escalation of threats by the IRGC Navy indicates a high level of volatility in the Strait of Hormuz, a critical chokepoint for global oil transit. The contradiction between reports of a holding cease-fire and ongoing missile strikes suggests that neither side has achieved a stable diplomatic off-ramp, leaving the region susceptible to rapid escalation if another commercial vessel is targeted.