In the last few years, Chipotle has been taking beating after beating, not unlike Steve Rogers in the first act of Captain America: The First Avenger. To add on to the beatdown of Chipotle, the fast-casual Mexican Grill recently had more than a hundred customers get sick from their food, as well as a couple confirmed cases of norovirus resurfacing.

Now, Business Insider reports, Chipotle has been served a subpoena and is currently undergoing a federation investigation for all the recent food related illnesses that occurred at the restaurant since 2015.

Last week, a Chipotle location in Sterling, Virginia, was ground zero for another norovirus outbreak. The restaurant responded on Wednesday with a filing stating that they fully intend to cooperate with the investigation.

So far more than 100 people reported to iwaspoisoned.com that they became sick after eating at the Virginia location. It has also been confirmed that two of those customers have tested positive for the norovirus: a pathogen that causes diarrhea, stomach aches, and vomiting.

Chipotle's recent foray into food safety issues parallels the events two years ago where customers also tested for norovirus as well as E. coli. It appears too many people are getting sick in such a short amount of time for food safety authorities to ignore.

The investigation will be conducted by the US Attorney's Office for the Central District of California and the US Food and Drug Administration's Office of Criminal Investigations.

According to Business Insider, criminal investigations on outbreaks of food borne illnesses aren't that common. This recent resurgence of norovirus, however, may have been the straw that broke the camel's back.

Hopefully they'll soon get to the bottom of what's making customers sick all the time.