COLORADO SPRINGS, Colo. -- Coloradans reacted with shock and grief after the shootings at Fort Hood, Texas, on Thursday, but the state's major military installations said their current security precautions were strong enough.

"We always remain vigilant and always have precautions in place, but we haven't done anything specifically for today," said Tech. Sgt. Jill Lavoie, a spokeswoman for Buckley Air Force Base in Aurora.

At Fort Carson, a huge Army post outside Colorado Springs, Lt. Col. Steve Wollman declined to say whether security measures had been tightened but said they were "appropriate."

"The safety of our soldiers, families and civilians ... is of the utmost importance" to commanders, he said at a Thursday afternoon news conference.

Wollman said that Army officials were monitoring the situation in Texas, but did not believe that the shootings were part of a full-scale attack on the military.

Fort Hood and Fort Carson are closely connected. Earlier this year, about 2,000 soldiers moved from Fort Hood to Fort Carson, Wollman said. However, he said he didn't know if any had a connection with the events in Texas.

Colorado Springs police Lt. David Whitlock said police weren't doing anything out of the ordinary Thursday.

Peterson Air Force Base in Colorado Springs, home of the U.S. Northern Command and the North American Aerospace Defense Command, made no security changes, Tech. Sgt. Amanda Callahan said.

The Air Force Academy and Schriever Air Force Base, both outside Colorado Springs, reported no additional security.

Brian Binn, a retired Air Force colonel who oversees military affairs for the Colorado Springs Chamber of Commerce, said Thursday his first reaction to the Fort Hood shootings was: "What a tragedy for the families involved."

Binn said communities like Colorado Springs and Killeen, Texas, outside Fort Hood, will feel the effects of the violence because of their close ties to the military.

"Clearly it will ripple through the community, first shock, then caring for the soldiers involved and the other families involved," he said.

Fort Carson has wrestled with off-post violence after Iraq war veterans from a single brigade were accused of connections to 11 slayings since 2005. A military study said the psychological trauma of combat in Iraq may have helped drive the violence.

The violence prompted a study by an Army task force. Its report, issued in July, suggested fierce combat was a factor -- as well as the length of deployments and the prospect of humiliation for combat vets who seek mental health treatment at home.

The report was described as the most comprehensive examination to date of violent crimes and combat exposure.

The task force looked at members of Fort Carson's 4th Brigade Combat Team, 4th Infantry Division, known as the Iron Eagles.

Soldiers in the unit were accused in five killings in separate attacks around Colorado Springs in 2007 and 2008, including the slaying of a couple gunned down while posting a garage-sale sign. They were also involved in six more slayings in Colorado and other states since 2005.

The report compared the unit of about 3,700 soldiers with a similarly sized unit and found it suffered more combat deaths in Iraq and was deployed there longer.

Lt. Gen. Eric B. Schoomaker, the Army's surgeon general, said at the time the unit's crime cluster appeared to be unique among Army bases.

A law enforcement official identified the shooting suspect in the Fort Hood shootings as Army Maj. Nidal Malik Hasan.

U.S. Sen. Kay Bailey Hutchison said Hasan was about to deploy overseas, though it was unclear if he was headed to Iraq or Afghanistan and when he was scheduled to leave.

Hasan, 39, was a psychiatrist at Walter Reed Army Medical Center for six years before being transferred to the Texas base in July. Military officials, who had access to Hasan's military record, said he received a poor performance evaluation while at Walter Reed. The officials spoke on condition of anonymity because military records are confidential.

The Virginia-born soldier was single with no children. He graduated from Virginia Tech University, where he was a member of the ROTC and earned a bachelor's degree in biochemistry in 1997. He received his medical degree from the military's Uniformed Services University of the Health Sciences in Bethesda, Md., in 2001. At Walter Reed, he did his internship, residency and a fellowship.