Roth IRA distribution for non resident aliens

Hello!

 

question is about withdrawals after age 60.

 

Since ROTH IRA is post tax money, will "NON RESIDENT ALIENS" be taxed when it is withdrawn ?

i will most likely not be residing here when i'm 60.

 

i know its not taxed if im a resident, this question is purely about what happens if im not a resident of US.

 

thanks!