SANCHEZ: New overnight the U.K. raising the security level for British tankers in the Strait of Hormuz. The Iranians tried to seize a British ship in that critical shipping route just hours earlier. CNN's Nic Robertson is live in London with the latest. Nic, is there a genuine fear that the Iranians may try something like this again?</s>NIC ROBERTSON, CNN INTERNATIONAL DIPLOMATIC EDITOR: Oh, absolutely. We've heard both the Foreign Office here in the Ministry of Defense condemning what Iran has done. The prime minister's office here asking Iran to deescalate the tensions. But this raising the threat level to level 3, which means the assessment is that the attack on a British flag vessel in the Strait of Hormuz is now at a critical level, just indicates how seriously this is being taken. Of course the British Heritage vessel that some Iranian Revolutionary Guard call fast boats tried to intercept and maneuver into Iranian territorial waters. It took a British naval vessel HMS Montrose to train its guns on those Iranian boats to deter them and then escort that tanker out through the Strait of Hormuz, out into safer seas. The commander of the U.S. Navy Fifth Fleet based in Bahrain says that he's aware of these illegal actions by the Iranian Revolutionary Guard Corps. The State Department says that they are watching this. That they condemn what Iran is doing. And all of this because Iran has told Britain it must release its super tanker, the Grace One, which was taken into custody in the waters off Gibraltar just last week. And the authorities there announcing that the captain and the first officer aboard that ship are arrested on charges of essentially sanctions busting, trying to take that Iranian oil to Syria. But the United States leaving the door open a little for diplomacy here deciding not at this time to put sanctions on the Iranian Foreign Minister Javad Zarif -- Boris.</s>SANCHEZ: Right. And the Revolutionary Guard claiming that nothing ever actually happened. Nic Robertson reporting live from London. Thank you.</s>ROMANS: All right. Amazon planning to spend big money to retrain its work force as new technology disrupts the labor market. CNN Business will tell you how much next.
U.K. Raises Threat Level for Tankers in Strait of Hormuz.