Capitol Hill Police Reportedly Investigating Suspicious Substance in Senate Office Building (UPDATE: 'All Clear' Given)

UPDATE — 5:52 p.m. ET: The "all clear" has reportedly been given:

All clear, per USCP.

— Hannah Hess (@ha_nah_nah) February 10, 2014

DIRKSEN: all clear.

— Lisa Desjardins (@LisaDCNN) February 10, 2014

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Capitol Hill Police are investigating a report of a suspicious substance in the Dirksen Senate Office Building located in Washington, D.C., multiple outlets reported late Monday afternoon.

Police investigating substance in @RonWyden's office https://t.co/R3yyFlOZb6 pic.twitter.com/IlTjLWQf0s

— POLITICO (@politico) February 10, 2014

Outside Dirksen office closed while Capitol Police examine suspicious substance in an envelope. pic.twitter.com/E5H0JTFF5M

— Hannah Hess (@ha_nah_nah) February 10, 2014

"USCP is currently conducting an investigation into a suspicious substance in the Dirksen... Will update when there is more to share." -Spox

— Hannah Hess (@ha_nah_nah) February 10, 2014

This is a breaking news story. Updates will be added.

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