President Obama on Tuesday said that Congress needs to act on passing tougher gun control legislation after the mass shooting at the Navy Yard in Washington, D.C.

In an interview with Telemundo, Obama said he had taken executive action after the Newtown massacre in December, but the next step rests with lawmakers.

"Ultimately, this is something that Congress is gonna have to act on," said Obama. "I've taken steps that are within my control. The next phase now is for Congress to go ahead and move."

Obama blamed Republicans for blocking gun control legislation he said was backed by the public.

"You have a majority of the American people and even a large percentage of Republicans who are ready to move the country forward, and yet we keep on getting blocked. And it's a challenge that speaking out on, but ultimately we're also gonna meet pressure from the public to see if we can change how they do business up there."

Obama's comments come a day after police said Aaron Alexis opened fire at the Navy Yard military complex, killing 12 people in the nation's latest mass shooting.

After a gunman killed scores of children at an elementary school in Newtown, Conn., Obama implemented a number of executive actions to toughen federal enforcement of gun laws, and called for lawmakers to pass a tougher background check legislation and bans on assault weapons and high-capacity magazines.

But a Senate measure on background checks faltered.

Obama said that mass shootings and gun violence should not be accepted as a fact of American life.

"I do get concerned that this becomes a ritual that we go through every three, four months, where we have these horrific mass shootings. Everybody expresses understandable horror. We all embrace the families and obviously our thoughts and prayers are with those families right now as they're absorbing this incredible loss," said the president. "And yet we're not willing to take some basic actions that we know would make a difference."