(LEAD) U.S. nuclear-powered submarine, USS Mississippi, arrives in Busan port

(ATTN: ADDS more details in last 3 paras)

SEOUL, June 13 (Yonhap) – The USS Mississippi (SSN-782), a nuclear reactor-powered United States submarine, entered the port of Busan on Monday as part of the vessel’s maiden voyage to the Asian region, the U.