Djibouti: the numbers and what they do not say

A boat reported to be carrying more than 300 people capsized off the coast of Djibouti. Al Jazeera reports at least 109 dead "following search and rescue operations," but the item does not name the authority issuing the death toll, an as-of time, or the criteria used for "confirmed." It also reports over 100 missing without an issuing authority, timestamp, or definition of what "missing" means in this context.