Officials from U.S. Senator Patty Murray’s office announced Thursday at 1:44 p.m. that there is currently an ongoing investigation into a suspicious package that has been reported in the senator’s downtown Tacoma office, located at 950 Pacific Ave. The Tacoma Police and Fire Departments — as well as other emergency responders — have arrived on the scene to handle all aspects of the investigation and response effort.

UPDATE 2:25 p.m.: A Tacoma Fire Department spokesperson reports the package was a letter-sized envelope received via regular mail that raised the suspicions of an employee because of the odd nature of the return address and what felt like a substance similar to sand inside the envelope. The letter will be bagged and processed by the U.S. postal inspector.

UPDATE 4:48 p.m.: Tacoma Fire Department spokesperson Joe Meinecke reports the following — At 12:17 p.m, four companies of Tacoma Firefighters (1 engine, 1 ladder, Haz-Mat, and command staff) responded to a report of a suspicious package at U.S. Senator Patty Murray’s Tacoma satellite office. After evacuating the office, standard testing for hazardous materials including biological, radiological and chemical substances were conducted by the haz-mat team. The field test results were negative and the scene was turned over to law enforcement and the U.S. postal service for follow-up. There were no injuries to report.