Arizona State Capitol Executive Tower Evacuated After White Powder Found in Envelope
Authorities evacuated the Arizona State Capitol's Executive Tower in Phoenix after an envelope containing white powder was opened, leading to a response from state and federal hazmat teams.

Phoenix, AZ, October 15, 2026 —
Authorities evacuated the Arizona State Capitol’s Executive Tower in Phoenix after an envelope containing white powder was opened. State and federal hazardous-materials teams responded, according to the available account.
The account does not state when the envelope was opened or who opened it. It also does not identify the substance in the envelope, describe how many people were evacuated, or say whether anyone was injured. No details were provided about the envelope’s destination or its intended recipient.
The response involved hazmat teams from both state and federal agencies. Their specific agencies, the actions they took, and how long the response lasted were not provided. The available information also does not say whether investigators determined how the envelope arrived at the tower or whether it was connected to any threat.
It remains unclear whether the evacuation was limited to the Executive Tower or included other parts of the Capitol complex. The account does not provide information about when occupants were allowed to return or whether the building’s operations were disrupted.
The white powder has not been identified in the information provided. No test results, inspection findings, or official determination about the substance were included. Further details about the incident, including its timing and the outcome of the hazmat response, were not available in the summary.
Story summarized from the original created by David Baker on www.azfamily.com, see more information here.
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