Denny’s, the popular American diner chain, has reportedly joined a growing number of restaurants responding to the nationwide egg shortage by adding a temporary surcharge to its egg-based meals at some locations.

The company said the extra fee will vary by region and location, and it declined to specify which restaurants will be affected.

Denny's is temporarily adding an egg surcharge at some of its restaurants because of the nationwide egg shortage and increased prices, the chain confirmed to Axios Monday. Why it matters: The bird flu has ravaged the nation's supply of eggs,