Key facts
- A supertanker sanctioned for its role in moving Iranian oil is heading toward the Persian Gulf.
- The tanker's movement challenges a US blockade.
- The US blockade has been in place since mid-April.
A supertanker that has been sanctioned for its involvement in transporting Iranian oil is now heading toward the Persian Gulf. This action represents a direct challenge to a US-imposed blockade that has been active in the region since mid-April.