accessibility - Screenreader - multiple live regions

Is it possible to stack multiple live regions, so that they all announce appropriately within a screen reader?

I have this setup:

Click here

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// javascript
    $('.action').on('click', function(event){
        $('#message').empty().append('Out of stock online');
        $('#RIO').empty().append('Out of stock at selected store');
    });

http://jsfiddle.net/jasonday/q8z901oj/22/embedded/result/

Only one of the messages is being relayed (the second one - RIO). I would like the screenreader to notify of both regions when the action takes place (click of link).