What do I do when I see an underaged girl sending nudes to people

My Location: Saudi Arabia

Her location: Pennsylvania

I saw this underaged girl sending nudes to people I tried lecturing her she just ignored and blocked me also she sent me nudes without asking I reported her Snapchat 3 times two of them got down am waiting for the third one to also get taken down idk what to do I tried contacting the police there but they said I should contact the police here I know a good amount information about her just not her last name unfortunately like I know three TikTok accounts again thank you also am sorry for my bad English