U.S. Navy Office of Naval Intelligence Worldwide Threat to Shipping (WTS) Report 30 January - 1 March 2017

In addition to the execution of a German sea kidnap victim by a Philippine terrorist group, note:

Red Sea, Bab-el-Mandeb Strait and Gulf of Aden Commercial vessels in the region of the Red Sea, Bab el Mandeb Strait and the Gulf of Aden should operate under a heightened state of alert as increasing tensions in the region escalate the potential for direct or collateral damage to vessels transiting the region. These threats may come from a variety of different sources such as missiles, projectiles or waterborne improvised explosive devices. Houthi rebels claimed responsibility for an 01 October attack on a UAE vessel. Vessels in the region should report hostile activities immediately and contact coalition naval forces via VHF bridge to bridge radio

U.S. Navy Office of Naval Intelligence Worldwide Threat to Shipping (WTS) Report 30 January - 1 March 2017 by lawofsea on Scribd