An impromptu vigil for Rep. Gabrielle Giffords (D-Ariz.) and other victims of a shooting in Tucson, Ariz., is being held in front of the Capitol building in Washington, D.C., Saturday night.

According to a Facebook posting, 44 people have committed to attend a vigil for the congresswoman and 17 other people who were shot at a public event hosted by Giffords, as of the time of this posting. She is in critical condition, and doctors said they are optimistic. At least five others have died, including a federal judge and a young girl.

"Today Rep. Giffords and others were shot. Some were needlessly killed. In Arizona they are doing vigils. People are tired of the political hatred and violence. Maybe we can show the nation that better angles will prevail?" the event page on Facebook stated. "This is a spontaneous idea but I think we should show some solidarity with those in Arizona suffering right now."

The vigil is being held at First St. and Independence Avenue SW.