Originally posted by the Voice of America. Voice of America content is produced by the Voice of America, a United States federal government-sponsored entity, and is in the public domain. Iran Calls on Britain to Release Seized Iranian Oil Tanker VOANews VOA Persian's Katherine Ahn contributed to this report. Iran is demanding that Britain release an Iranian oil tanker seized last week off the coast of Gibraltar and accused Britain of playing a "dangerous game" in the Persian Gulf region. Iranian Foreign Ministry spokesman Abbas Mousavi told state news agency IRNA on Friday the seizure of the tanker "has consequences" and that Britain's "legal pretexts for the capture are not valid." Mousavi's remarks came two days after Iranian President Hassan Rouhani also warned Wednesday that Britain would face unspecified "consequences" for the seizure of the vessel on suspicion of transporting oil to Syria in violation of European Union sanctions. Tensions in the region further escalated Thursday when Britain said Iranian three military vessels tried to "impede the passage" of a British oil tanker through the Strait of Hormuz. A British government statement said three Iranian vessels were involved in the incident, and they backed off when they received a verbal warning from a British warship. The government said Friday it would deploy the HMS Duncan warship to the Gulf to replace the HMS Montrose, which Britain says was forced to fend off the Iranian vessels. References Visible links Hidden links: 1. file://localhost/europe/britain-accuses-iran-trying-block-oil-tanker-gulf .