As reported earlier:

At about 2 a.m. Sunday morning, a gunman opened fire inside the Pulse nightclub in Orlando, Florida, killing approximately 50 people and injuring at least 53 more (reports initially said 20 dead). A police officer working at the club exchanged fire with the suspect, who took hostages into a bathroom at around 5 a.m. Soon after, police killed the suspect. A spokesman for the Florida Department of Law Enforcement said the incident was being officially classified as an "act of terrorism."

Govenor Bullock:

As requested by the President of the United States, I hereby order all flags flown in the State of Montana to be displayed at half-staff on Sunday, June 12th, 2016 until sunset on Thursday, June 16th, 2016, out of respect for the victims of the act of hatred and terror perpetrated in Orlando, Florida on June 12th, 2016.

Senator Jon Tester:

“Sharla and I join the millions of Americans who are grieving after the loss of innocent life.  We must come together to put an end to this terrorism, intolerance, and senseless violence that is attempting to steal our freedom.”

Senator Steve Daines:

"My deepest condolences with the victims & families of this horrific attack. Grateful for our first responders and law enforcement officials."

Rep. Ryan Zinke:

"Today's terrorist attack in Orlando is a tragic reminder that it only takes one individual to carry out a terrorist attack and kill dozens of innocent civilians.

"The threat of radical Islamic terrorism is not something that is made up: New York, Boston, Fort Hood, Chattanooga, San Bernadino, and now Orlando.

"The very plain reality is, radical Islamic terrorists have waged war on the American people, whether politicians admit it or not. As more details emerge - including the terrorist's professed allegiance to ISIS, and years of contact with known terrorists - it becomes more clear that is exactly what this is.

"We must change course: Radical Islamic terrorism is as much a war within Islam as it is a war against the West, and it will take a global coalition with Middle Eastern stakeholders and American leadership to stop it at its source. We must also do more here at home to stop individuals who have been radicalized before they act. I will continue to do everything I can in Congress to lead the fight against this evil to ensure both our troops forward deployed and our families here at home are safe.

"The victims, their loved ones, the law enforcement, and the medical professionals working diligently to save lives remain in my and Lola's prayers. And if you're in the Central Florida area, blood donors are greatly needed."