This paper investigates how the believability of news headlines is impacted when those news headlines are accompanied by generative AI images. We reports on a series of in-progress experiments. The results suggest that the use of AI images reduces the believability of news headlines, especially when those news headlines are presented by news institutions, rather than named individuals. The negative impact of AI images on believability does not seem to be attenuated by warning labels which state that the images used are AI generated. These findings have implications for online news, and other application domains where believability is important.