UPDATE: Police officers say the suspect in the killings of two Des Moines police officers in custody, according to the Associated Press.
Iowa police identified a suspect in the killing of two officers who were sitting in their cars during separate "ambush-style attacks" early Wednesday in greater Des Moines.
A manhunt was launched for Scott Michael Greene, 46, of Urbandale as authorities warned of a "clear and present danger to police officers."
Police described Greene as a white male, 5-foot-11 and 180 pounds with brown hair and green eyes. He was driving a blue 2011 Ford F-150.
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DES MOINES, Iowa (AP/ NBC NEWS) - Police in Des Moines, Iowa, say two officers have been shot and killed in ambush-style attacks.
The Des Moines Police Department said in a news release that the shootings took place early Wednesday. Officers responded to a report of shots fired at about 1:06 a.m. and found an Urbandale Police Department officer who had been shot.
Sgt. Paul Parizek, a public information officer with the Des Moines Police Department, told reporters there was a "clear and present danger to police officers" and that a suspect remained on the run.
He added that there did "not appear that there was any interaction between these officers and the coward who shot them."
Parizek said the officers "were gunned down when they were sitting in their cars."
Des Moines officers responded to assist. About 20 minutes later, a Des Moines officer was found shot. Both officers have died.
The Des Moines Police Department said suspect information is being developed. Arizek, who said the officers "were gunned down when they were sitting in their car," added that his colleagues were traveling in pairs for their own safety.
Their names were not immediately released.
The Urbandale shooting took place near Urbandale High School, and the school district announced Wednesday it was canceling classes.
The local community was already mourning the loss of two other Des Moines officers who died in a car crash while on duty on March 26.
"I don't even know where to begin, how bad this year is," Parizek added.
He also referred to tensions across the country and that some people have "not-so-positive views of law enforcement."
The July 7 sniper killing of five officers in Dallas during a peaceful protest highlighted the deadly danger many officers face at work on a daily basis.
"An attack on public safety officers is an attack on the public safety of all Iowans," Gov. Terry Branstad and Lt. Gov. Kim Reynolds said in a statement. "We call on Iowans to support our law enforcement officials in bringing this suspect to justice."