Iranian state television reported Saturday that three oil tankers struck Iranian naval mines and caught fire near the Strait of Hormuz, citing the Revolutionary Guards and Iranian navy.

Two tankers were reportedly hit inside the strait and a third to its east. No details were provided about casualties, vessel nationalities, or destinations.

Iranian forces warned ships against crossing without Tehran’s approval.

The Associated Press reported attacks on shipping amid the US-Iran conflict and the economic impact of the American blockade.

October reportedly recorded the highest number of commercial shipping incidents since the war began in February.