Updated 11:40 p.m. EST

Details are still sketchy on the mass shooting at a Planned Parenthood clinic in Colorado Springs, Colorado where five police officers and 11 civilians have been injured. The suspected shooter has now been arrested after a five-hour standoff.

As the gunman remained at large in its building, before the full details of the tragic incident were known, Planned Parenthood labeled the attack an act of "domestic terrorism."

The local branch of the organization, Planned Parenthood of the Rocky Mountain, said in a statement that "extremists are creating a poisonous environment that feeds domestic terrorism in this country."

Statement regarding situation in Colorado Springs: pic.twitter.com/n31EqwYYh8 — PPRM (@PPRockyMountain) November 27, 2015

Later on Friday, Planned Parenthood of the Rocky Mountains issued a version of the statement in which the phrase "domestic terrorism" is replaced with "acts of violence."

"We haven't ruled out the likely motives of the perpetrator but right now, we are primarily focused on the safety and well-being of our staff and patients," Vice President of Public Affairs for Planned Parenthood of the Rocky Mountains Cathy Alderman told Mashable when asked what led to the wording change.

"As an organization that has been under attack for some time, we are regrettably not unfamiliar with the motives that often lead to violent acts against us."

In September, following months of activity by anti-abortion activists, the House of Representatives held hearings that misrepresented the care Planned Parenthood provides — of which abortion is a very small part — and passed a bill that attempted to defund the organization for a year.

That same month, following arson attacks in both California and Washington State, the FBI warned the organization and other reproductive health offices of continued "criminal or suspicious incidents ... directed against reproductive health care providers, their staff and facilities."

Despite the warning, Planned Parenthood says it will "never back away from providing care in a safe, supportive environment."

Although the organization walked back its use of the word "terrorism", supporters on Twitter were clear what they considered the shooting to be.

As GOP incites fear of Syrian refugees, white terrorists have: ―Shot up Planned Parenthood ―Stalked mosque w/ rifles ―Shot black protesters — David Harris-Gershon (@David_EHG) November 27, 2015