GUH! No. That is a bad message. You say something along the lines of "Could you give me a call as soon as you can, there's some news I'd like to share." And you say it calmly, so people think they could just as well be hearing about your promotion as about a crisis.

When I had the nurse ring my housemates after I was run over, I insisted she should start with: "She's essentially fine, there was just a little incident ..."