State regulators have ordered a former Colorado gold mine where a tour guide was killed and a group of tourists was trapped for hours after an elevator accident to remain closed while its operations are reviewed.

An elevator bringing tourists down had a mechanical issue at 500 feet, causing “severe danger for the participants," authorities said.

The Colorado Division of Reclamation, Mining and Safety sent a cease and desist letter to the owners of the Mollie Kathleen Gold Mine in Cripple Creek after last week's tour guide death.

Colorado officials ordered the Mollie Kathleen Gold Mine to cease and desist operations on Wednesday about a week after a tour guide was killed and 23 people trapped underground when an elevator malfunctioned.

A cease and desist letter was sent to the owners of Colorado's Mollie Kathleen Gold Mine a deadly elevator malfunction trapped visitors for hours forcing a rescue where one person died.