article_snippet.sent: The Red Cross has warned of a 'catastrophic' situation in main southern city Aden where militia loyal to fugitive President Abedrabbo Mansour Hadi have been holding out against Houthi Shiite rebels and their allies within the security forces.
article_snippet.sent: Without Borders said Borders feared many more had been unable to reach hospitals.
article_snippet.sent: The Red Cross has warned of a 'catastrophic' situation in the city .