The vessels can conduct long range security patrols at extreme speeds for several days.
China, Burma, Laos and Thailand launched joint security patrols on the Mekong in response.
The assailants slipped onto airport territory between security patrols, said another person familiar with the events.
In addition, 160 traffic wardens are being moved into central London on security patrols.
The Royal Navy minehunter operated out of Bahrain conducting counter-piracy and security patrols as well as exercises with coalition forces.
Iraqi troops often take the lead in security patrols, as 13 of 18 provinces now are under Iraqi security control.
In areas outside of the cities and towns, the U.S. military will continue to conduct combat operations and security patrols in coordination with the Iraqis.
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Juliet Marine Systems is discussing with the shipping industry the use of GHOST boats to provide private security patrols for their ships and insurance customers.
On Monday Mr Mandelson decided to step up security by resuming army patrols in some parts of Belfast and increasing the police presence on the streets.
Security in a wide area surrounding the hotel has been increased in recent weeks with police patrols, vehicle checkpoints and security barriers.
Security in a wide area surrounding the hotel where the summit is being held has also been increased in recent weeks with police patrols, vehicle checkpoints and security barriers.
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Qassim Atta, the military spokesman of Baghdad's security plan, said Tuesday that checkpoints and patrols have been established and coalition forces are ready to help Iraqi troops, but they have not entered Sadr City.
However, he said, security has been beefed up on campus, including officers on foot patrols carrying semiautomatic weapons.
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Leicestershire Police said it had already increased patrols and called on traders to help by improving their own security.
In addition, Israeli and Jordanian forces will participate in joint patrols and in the manning of control posts to assure the security of the borders.
Security was tight, with police officers in cruisers and on foot making regular patrols around the barricaded federal courthouse.
Metro passengers are likely to see or encounter extra patrols by the Los Angeles Sheriff's Department, which provides security for the Metro system.
Israeli police have increased patrols around U.S. facilities and are prepared to implement heightened security measures in the event of demonstrations around U.S. diplomatic facilities, according to spokesman Micky Rosenfeld.
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