As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CLIMBING THROUGH FL 260, GOT A "CARGO BTL LO" MSG, DIVERTED TO NEAREST SUITABLE AIRPORT PER QRH. DESCENDING THROUGH 8,000FT THE MSG EXTINGUISHED. NO EVIDENCE OF SMOKE OR HALON IN CARGO BAY. EMERGENCY DECLARED. EN ROUTE TO ILM, A/C DIVERTED TO CAE DUE TO MTC.