Iran is tightening control over the Strait of Hormuz by forcing oil tankers to pass through a narrow route in its territorial waters, where ships may be charged millions in transit fees.

Ship traffic has dropped sharply—from about 110 vessels daily to fewer than 10—since recent military strikes by the United States and Israel.

The route runs near key Iranian positions, including islands like Qeshm and Larak, where the Islamic Revolutionary Guard Corps monitors ships.

Iranian officials have suggested formalizing tolls, framing them as payment for security, while some vessels have already reportedly paid fees, NBC News has reported.

The move signals Iran’s intent to assert long-term control over the vital global energy corridor amid escalating conflict.