These free helplines are there to help when you're feeling down or desperate.
Unless it says otherwise, they're open 24 hours a day, every day.
Let family or friends know what's going on for you. They may be able to offer support and help keep you safe.
There's no right or wrong way to talk about suicidal feelings – starting the conversation is what's important.
If you find it difficult to talk to someone you know, you could:
See more tips from Rethink.
If you're worried about someone, try to get them to talk to you. Ask open-ended questions like: "How do you feel about...?"
Don't worry about having the answers. Just listening to what someone has to say and taking it seriously can be more helpful.
See Samaritans' tips on how to start a difficult conversation.
Rethink also has advice on how to support someone who is having suicidal thoughts.