Emergency crews evacuated Heartland Petroleum after a pressure rupture was reported Monday morning.
According to authorities, crews first received a report of an explosion, but later determined that a piece of equipment had a pressure rupture. Crews were on the scene, located at 4001 E. Fifth Ave., around 5:45 a.m.
Investigators said that an employee was transferring vapors to a storage area when the rupture occurred.
Officials said that Heartland Petroleum suffered a power outage that allowed pressure to build in the tank, leading to the rupture. A hazardous materials crew was called to the scene, but not needed.
Crews contained the situation by 6:30 a.m. There were no reports of injuries.
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