Tensions are once again rising in the Strait of Hormuz, after the U.K.'s Ministry of Defense said three Iranian ships tried to block the passage of a British oil tanker and a British naval vessel had to intervene.
Iranian officials, however, denied that any such incident occurred.
The U.K. ministry said in a statement that on Wednesday, "HMS Montrose was forced to position herself between the Iranian vessels and British Heritage and issue verbal warnings to the Iranian vessels, which then turned away."