In the aftermath of a deadly Colorado shooting, New York City Mayor Michael Bloomberg urged President Obama and Mitt Romney to say how they would prevent future incidents of gun violence.

Bloomberg has emerged as one of the country's leading gun control advocates, founding the organization Mayors Against Illegal Guns and pushing vocally for tighter regulations on firearms. Romney and Obama have both released statements expressing their horror at the Colorado massacre and offering condolences to the victims, but Bloomberg -- who also issued a call to action after the Trayvon Martin shooting -- exhorted them to be more forceful.

Soothing words are nice, Bloomberg said during an interview on WOR News Talk Radio 710 in New York City. But maybe it's time the two people who want to be president of the United States stand up and tell us what they're going to do about it, because this is obviously a problem across the country.

No matter where you stand on the Second Amendment, no matter where you stand on guns, we have a right to hear from both of them, concretely, not just in generalities, specifically, what are they going to do about guns? Bloomberg added.

Despite fears of a Second Amendment crackdown, President Obama has done nothing to restrict gun ownership rights. That has not prevented the National Rifle Association from warning that Obama would unravel Second Amendment protections during a second term, a critique that Romney has backed.

The president is set to address the shooting at a Friday morning campaign stop in Fort Myers, Florida. around 11:20. Check in to the International Business Times for updates.