Description:Security forces open fire on secessionist protesters in the south Yemen port of Aden on Thursday killing at least six. The protests were staged for the first anniversary of the election of President Abd-Rabbu Mansour Hadi, a northerner. Hadi addressed a news conference in the capital Sanaa, saying the protesters had financial and military support from an unnamed foreign state. He said these issues will top the agenda of a forthcoming national dialogue.(0:57)