Bus and rail strikes: Why NI's public transport isn't running

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With just over a week until Christmas, this weekend is traditionally one of the busiest for shops, bars and restaurants.

But their business - and the plans of many - are expected to take a hit due to a 48-hour bus and rail strike, which will bring public transport across Northern Ireland to a halt.

But what's it all about? Here's everything you need to know about what's going on (in just less than 110 seconds).