By Liam Reilly, CNN

(CNN) — UnitedHealthcare sued The Guardian and its parent on Wednesday for defamation, claiming the US version of the British daily newspaper ran information it knew to be incorrect in order to “capitalize” on the assassination of the medical insurer’s CEO.

The article in question was produced and published by The Guardian’s US investigations team as part of a series titled “ Too Big to Care ” and was available worldwide at publication. In the article, George Joseph, an investigative reporter for The Guardian’s US publication, wrote that UnitedHealth Group, UnitedHealthcare’s parent, had engaged in cost-cutting tactics by paying off nurses to cut down on hospital transfers.

Citing internal emails, documents and interviews with more than 20 current and former staf

See Full Page