China's Foreign Ministry has said it is conducting an "earnest, solemn" investigation into Tokyo's claim that a Chinese frigate put a radar lock on a Japanese navy ship last month.

BBC: Japan Maritime Self-Defense Force destroyer Yuudachi

They have been at the heart of considerable diplomatic tension between China and Japan, most recently in January when Japan said a Chinese frigate put a radar lock on a Japanese navy ship near the islands - something China disputes.

BBC: China anger at Japan-Taiwan disputed island fishing deal

It builds on the standard kidnapping and ransom policy by bringing in consultants to train crews in security, prepare emergency safe rooms where crews can lock themselves in until a hijacked ship can be retaken, and provide round-the-clock advice to captains on safe routes to take.

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Better yet, the system is set to work in unison with the Lockitron (a smartphone-controlled keyless door lock that was recently crowd-funded, albeit still yet to ship) allowing you to let welcome visitors inside your abode at the tap of your iOS or Android Device's app screen.

ENGADGET: DoorBot lets you see and talk with who's at the door from the comfort of your smartphone (video)

Zoya Quinn, wife of the ship's second officer, told the Associated Press that Capt Phillips had told the crew to lock themselves in a room and that the pirates, who were "desperate", searched all over the ship for them.

BBC: Captain 'tried to escape pirates'

Sometimes you will have to lock yourself in a room to write or code for 72 hours to make a deadline or ship a product.

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