Is my 3ds chrger spiled or the 3ds?

My nintendo 3ds charger wont charge my 3ds. Some strange noises like a jet plane about to be taking off , comes from the adapter of my 3ds charger. Is the problem with my 3ds or its with the chrger
Notes: Charger is not from my country so the voltage ofr frequency may alter
I have a doubt whether my 3ds is spoiled or the charger even though it seems that my charger must be pretty spoiled .
Thank you