When there's a news story breaking on Twitter, beware the first images you see floating around on Twitter - though some could be real, there's a good chance they could also be old and re-purposed photos. A quick way to spot these fakes is using reverse image search (https://www.google.com/img). Reverse image search let's you see where else on the web a given image (or similar images) are displayed. Often these are other tweets, Facebook pages or news stories that may prove that the image you just retweeted showing breaking news were actually taken months ago, half way around the world.
In this story, we'll look at some of the first images to emerge from the ongoing Saudi-led strikes on Yemen.