The ruins of a submerged city on the Tigris River that emerged this year belonged to a little-known empire. https://www.aljazeera.com/features/2022/11/15/zakhiku-the-ancient-city-in-iraq-revealed-by-severe-drought
Several successive empires, by the look of it, but the Mitannian connection is interesting.
Fascinating article, David. Thanks for passing this discovery along. Uncovering Mitanni tablets will be of great interest to many.