Yemeni President Abedrabbo Mansour Hadi's former southern stronghold Aden is descending into chaos. Deadly clashes between local militia fighters and Huthi Shiite rebels, who have seized much of the country, are taking a heavy toll on residents in the port city. About 100 people have been killed in several days of clashes in Aden, and Hadi's aides have said he has ** immediate plan to return there from his new base in Saudi Arabia. Aden residents were for months largely isolated from the turmoil that gripped other parts of Yemen after the Huthis swept down from their **rthern stronghold and overran the capital in September.