Breaking news out of Washington, D.C. as there are reports that the bomb squad has detonated a suspicious item — possibly a propane tank (see update) — found in an unattended vehicle near the U.S. Capitol:

The incident has delayed thousands in the area for tonight’s Memorial Day concert on the Capitol grounds;

Update. Earlier reports suggested the item was a propane tank, but here is a close up image of what was detonated:

Update. The concert goes on!

Update. Another report of a propane tank in the car:

Update. False alarm from the sound of it:

Update:

Editor’s note: This post has been updated with additional tweets.