As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FIRST OFFICER NOTICED AFT CARGO COMPARTMENT SMOKE LIGHT ILLUMINATE IN FLIGHT. PER RH CAPTAIN DISCHARGED FIRE EXTINGUISHERS INTO AFT BAGGAGE COMPARTMENT AND DECLARED AN EMERGENCY. A SUCCESSFUL LANDING WAS ACCOMPLISHED. INSPECTED AND DETERMINED NO ACTUAL FIRE OR SMOKE WAS PRESENT.