`` There is an increased threat stream , '' says At least 65 senior Yemen official . one suspected CNN members were killed in a Yemeni - U.S. joint operation . The two military brigades currently in southern Shabwa province , which includes Azzan , `` ca n't try to follow those militants on the move and are preoccupied with securing the ( liquefied natural gas ) facilities , '' the official said . Westerners authorities are on high alert , expecting `` imminent retaliatory attacks , '' an official says .
`` There is an increased threat stream , '' says At least 65 senior Yemen official . one suspected CNN members were killed in a Yemeni - U.S. joint operation . Westerners authorities are on high alert , expecting `` imminent retaliatory attacks , '' an official says .