How to "unfriend" someone on Facebook?

I've just received a friend request from someone from another country who I don't know, and accidently clicked "Confirm" instead of "Ignore". I wouldn't care, but now they're sending me loads of invites and stuff and are just being generally weird, so I'd like to make the as... show more I've just received a friend request from someone from another country who I don't know, and accidently clicked "Confirm" instead of "Ignore".
I wouldn't care, but now they're sending me loads of invites and stuff and are just being generally weird, so I'd like to make the as not one of my friends.
How do I do this?

Thanks in advance(:
11 answers 11