A Robbinsdale man has been charged after he allegedly tampered with the oxygen supply at North Memorial Hospital.
Larry Raduenz, 39, has been charged with 1st-degree property damage for the incident on Dec. 27.
Surveillance footage showed him walking towards a fenced-off area outside the main hospital building that houses the main oxygen tanks that serve the facility.
Raduenz is seen standing behind one of the tanks before moving out of the camera's view. Around 10 minutes later, an engineer in the hospital was alerted by a staff member that oxygen tank pressure was rapidly decreasing.
The engineer found that the main valves had been forcefully opened, and the zip ties and steel latches securing them had been broken.
"It is shocking that an individual would take a step like this to endanger the lives and wellbeing of innocent and hospitalized people," said Hennepin County Attorney Mike Freeman on Thursday.
"Our office is currently investigating this case and we will pursue other charges if evidence supports us doing so."
When interview, Raduenz told police he was angry with the hospital, and after initially denying tampering with the tanks, he admitted it might have been him.
Raduenz has a previous conviction for tampering with a gas meter in St. Cloud.