For years, Twitter — now called X — has been the most popular platform for Japan’s municipalities to use when sending out real-time information during natural disasters, with posts ranging from weather warnings and shelter locations to where people can get supplies.

But that may not be the case anymore.

A growing number of prefectures in southern Japan, often impacted by heavy rains and typhoons during the summer, have stopped posting disaster warnings on their accounts due to limits on the number of free posts allowed — a restriction caused by changes in X’s features.