MAJOR UPDATE: There are reports that this is a bad call, that there is no active shooter:

EARLIER REPORTS:

The US Capitol police are searching for an active shooter in the US Senate buildings after a 911 call alerted them. The active shooter has not been confirmed yet.

Here’s what we know, which isn’t much.

The Capitol Police put out this alert a few minutes ago:

They sent this email to those on Capitol Hill:

 
UPDATE: People are being evacuated with their hands up. Not a great sign…

I hope this turns out to be nothing more than a hoax. But we’ll let you know here as soon as we know.