The police announced the incident in a release on Friday, May 20, but the date the group trespassed was unavailable.
The exact number of people in the group was also unknown.
Netflix did recently release a four-part documentary "Meltdown: Three Mile Island" but it is unclear if the break-in is somehow connected to this recent release.
Anyone with information on this trespassing is asked to contact state police in Harrisburg at 717-671-7500.
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