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Update: The lockdown has been lifted

WASHINGTON D.C. — The U.S. Capitol building and Capitol Visitor Center are on lockdown due to police activity, according to NBC News.

Everyone is being asked to shelter in place as police search for a woman inside the Capitol.

People inside have been told to lock and stay away from doors and windows. They have also been asked to silence their cell phones.

The House has gone into immediate recess until further notice.

The full alert sent at 9:08 a.m. read:

Police activity has been reported requiring occupants in the U.S. Capitol Building and Capitol Visitor Center to immediately:

• Close, lock and stay away from external doors and windows

• Take annunciators, emergency kits and escape hoods; move to your office’s assigned shelter in place location or the innermost part of the office away from external doors or windows until USCP has cleared the incident

• If you are not near your office, take shelter in the office nearest to you and then check in with your OEC

• Silence mobile phones

• The buildings are locked down. No one will be permitted to enter or exit until directed by the USCP

• Further information will be provided as it becomes available

I'm grateful for these Blue Lives serving and protecting members and visitors everyday. #CapitolHillPolice pic.twitter.com/PAMa6MMngO — Rep. Mark Walker (@RepMarkWalker) July 8, 2016

On @HouseFloor. Locked in as @CapitolPolice address security situation. God bless them and every officer across America who protects us. — Rep. Eric Swalwell (@RepSwalwell) July 8, 2016

https://twitter.com/kenfarnaso/status/751403012086726656

Per Rep. Dennis ross, capitol on lockdown because a staffer tried to enter with a gun. — Jonathan Easley (@JonEasley) July 8, 2016