The Server Problem in Yahoo

Is there some problems undergoing with the Yahoo mail? Is it getting shut down? Whenever I am logging in, then I am facing some problems and it is giving a pop up message saying “Can’t talk now. System’s down. Sorry for the holdup.” I am sure that it is not at all a browser problem, nor it is a connection failure. I have even checked my internet connectivity, and have found that it is perfectly fine. I want to check whether the other people are also facing the same problem. Is it that only my region has been disconnected from this site? Is it a problem of the server or Yahoo has gone down? Can anyone of you help me by answering this?