The Houston Medical Center says it's cooperating with a multi-state investigation into whether a former lab technician may have spread Hepatitis C to patients. 

The Associated Press reports that David Kwiatkowski worked at hospitals in at least six states. 

Officials in New Hampshire accused him of infecting 30 people with the liver-destroying disease there. 

They say he stole syringes, used them to inject an anesthetic, and those syringes were later used on patients. 

The AP reports he was arrested Thursday at a Massachusetts hospital.

 

A statement from Houston Healthcare CEO Cary Martin says Kwiatkowski was a contract worker there from October 2010 to March 2011.

They say he worked in the cardiac cath lab there and did not have access to medication. 

Houston Medical says the Centers for Disease Control is trying to identify any patients from Kwiatkowski's past hospitals who need to be contacted.

They say those patients will get certified letters in the next two weeks.

The hospital says this is an ongoing investigation and they won't have any further comment at this time.