Mitt Romney is pulling all advertising in Colorado until further notice in response to a shooting rampage.

Romney campaign spokeswoman Andrea Saul announced the campaign was pulling all advertising in the state "until further notice" on Friday. The decision is in response to a shooting at a midnight screening of "The Dark Knight Rises" that resulted in the death of at least 12 people.

President Obama's reelection campaign has also asked local Colorado affiliates to pull all of its negative advertising for the moment.