(CNBC) Angelica LaVito Aug 30 2019 10:43 AM U.S. health officials are investigating 215 possible cases of severe lung disease associated with vaping across 25 states the Centers for Disease Control and Prevention and the Food and Drug Administration said in a joint statement Friday. The agencies said they need more information to understand whether theres a relationship between specific products or substances and the reported illnesses. As of now it does not appear the cases are linked to one particular product the agencies said noting that in many" of the cases patients reported using THC or CBD compounds found in cannabis. Even though cases appear similar it is not clear if these cases have a common cause or if they are different diseases with similar presentations which is why our ongoing investigation is critical" CDC Director Robert Redfield and acting FDA Commissioner Ned Sharpless said in a joint statement. Health and Human Services Secretary Alex Azar in a separate statement said this situation and the rising tide of youth tobacco use is a top public health priority for the Trump Administration and every leader at HHS." People who use vape should not buy products off the street modify e-cigarette products or add any substances that are not intended by the manufacturer the CDC and FDA said. People who use e-cigarettes should monitor any symptoms and seek medical attention if they have any concerns about their health they added.