When I worked in the CNMI (Saipan) in the earlier part 
of last decade, I discovered an unrecognized teen suicide
epidemic with astronomical rates.  Because of a then large
foreign-worker population, the suicide problem among 
Micronesians was obscured. 
Substance abuse, mainly alcohol, played an important role. 
The problem was tackled aggressively and included education
of the community and families of the seriousness of the problem. 
Within about five years, the rate was reduced to near zero. 
Of course we had the advantage of a much smaller population. 
I’m a psychiatrist.