Amid the fierce noise of a presidential campaign, the silence from all parties was deafening Saturday as police continued to investigate a suspected gunshot into the Obama field office near downtown Denver.

Democratic staff and volunteers were back in the office Saturday afternoon making calls for the president, with a child’s rainbow crayon poster decorating the plywood covering the broken window frame. Denver Police said a gunshot was apparently fired into the office from the outside on Friday afternoon, while campaign workers were inside. No one was injured.

Neither Democrats, Republicans nor police wanted to speculate whether the assault was random vandalism, or an attack related somehow to the heated presidential campaign. Multiple national media outlets picked up on the story.

A local Democratic spokeswoman for the Obama campaign referred all questions to police. Colorado Republican officials said they were sorry to hear of the incident but had no comment.

Police Saturday reiterated they had a description of a “vehicle of interest” in the incident, but would not release the description while they reviewed surveillance videos of the area.

Michael Booth: 303-954-1686, mbooth@denverpost.com or twitter.com/mboothdp