The seizure of the Asana is the latest in a rapidly growing wave of piracy sweeping the Gulf of Aden. An oil tanker has been seized off the coast of Yemen, in an attack the country’s coastguard says was carried out by Somali pirates. It is the latest in a series of hijackings to re-emerge in the region this year. The Yemeni coastguard said the Asana ... [3075 chars]