A US blockade is reportedly in place, with the US warning Iranian ships to stay away. There are conflicting reports about the seizure or interception of an Iranian ship, with some outlets stating that the US has seized an Iranian-flagged cargo ship or tanker. The US has threatened to take action against any Iranian "attack ship" that breaches the blockade, with some reports indicating that an Iran-flagged tanker attempting to breach the blockade was attacked by the US military.