Ghana investigators find 'black boxes' of helicopter that crashed and killed two ministers

Ghana mourns as helicopter crash kills ministers and others, with investigations ongoing. President Mahama pledges a full probe into the crash that killed Defense Minister Boamah and Environment Minister Muhammed among eight victims. "Black boxes" recovered as authorities investigate the cause, with weather conditions and past emergency incidents examined. National mourning declared with flags at half-mast, while Ghanaians grieve over the tragic loss.