According to Vernon Police, the person was in a building in the 200 block of Talcottville Road.
Police say several businesses nearby were evacuated during the duration of the standoff.
Officials have confirmed that the person is in custody.
Subject in custody. Peaceful resolution to standoff
— Vernon CT Police (@VernonCTPolice) October 11, 2017
It is not known why the person initiated the standoff.
Police also say a woman was willingly in that building. She was not harmed.
No injuries have been reported.
News 8 will update this story with more information as it becomes available.