Walgreens Files $140 Million Lawsuit Against Theranos

Walgreens has filed a breach of contract lawsuit against Theranos, the embattled blood-testing startup.

The lawsuit was filed Tuesday in Delaware’s district court. Details on Walgreen’s complaint weren’t immediately available because the suit was sealed by the court.

Walgreens, once Theranos’ biggest partner, terminated its relationship with the company in June. It had operated Theranos Wellness Centers, where people could go have their blood tested in the company’s stores.

In October, Theranos shut down all of its lab operations, pivoting to focus solely on the company’s miniLab technology. The pivot cut 340 positions and closed its Wellness Centers where blood tests were performed.

Walgreens declined to comment. Theranos could not immediately comment. 

The Wall Street Journal’s John Carreyrou earlier tweeted that the the lawsuit is worth $140 million, without elaborating.

Walgreens just filed a $140 million lawsuit against @theranos in Delaware.

-; John Carreyrou (@JohnCarreyrou) November 8, 2016

Theranos is also facing a lawsuit from one of its major investors and lawsuits filed by patients. 

This post originally appeared on Business Insider.