What was found
APPROXIMATELY 2:00 HOURS OUT OF KONT, PAST OUR ETP, RECEIVED LVL 1 CRG FLOW FWD DISAG AND SINGLE AMBER TRIANGLE IN THE LOWER FWD AIR SYNOPTIC PAGE. WHILE REVIEWING THE QRH, 2-5 MIN AFTER INITIAL ALERT, CREW RECEIVED RED CARGO FIRE LOWER. COMPLIED WITH QRH AND FIRE WARNING EXTINGUISHED WITHIN 60 SECONDS. DECLARED AN EMERGENCY AND DIVERTED TO LAND AT THE NEAREST AIRPORT. DISCHARGED 2ND BOTTLE. INSTALLED 5 SERVICEABLE CARGO SMOKE DETECTORS IN FWD CARGO COMPARTMENT REF AMM 26-14-01-4, ALL OPS CHECK GOOD. AS A PRECAUTION, ALSO REMOVED & REPLACED MSC REF AMM 31-42-01-4, OPS CHECK GOOD. INSTALLED SERVICEABLE SYSTEM 1 CARGO FIRE BOTTLE IAW AMM 26-22-01-4, OPS CHECK GOOD.