Please help. There is a young girl messaging me telling me she's going to kill herself

Idk what the fuck to do. She's 14, won't tell me what country she is in so I can find the right help. I know nothing about her. She messaged from one of my posts about needing someone to talk to. I didn't know her age or what she was going through but had a feeling there was something not right so I didn't talk to her about anything to do with me, just asked if she was ok now all of this is coming out. Please help???

Thank you so much everyone. I've done everything I possibly can and I wish I could have done more. She's agreed to get help and I can only hope she will. Nobody should ever feel that way and I really do hope that she is ok. I feel so useless right now. The poor girl is so young. She should not have to be dealing with thoughts like this.