Police: 2 officers in Iowa killed in ambush-style attacks

(AP) -- The Latest on two officers in the Des Moines, Iowa, area who were killed in what authorities describe as ambush-style attacks (all times local):
5:10 a.m.
Police in Des Moines, Iowa, say two officers who were killed in ambush-style attacks were both shot while they were sitting in their patrol cars.
Des Moines Police Sgt. Paul Parizek said Wednesday that authorities are developing suspect information but there was nothing that authorities were ready to share with the public.
Parizek was emotional during a news conference. He says there is "clearly danger" right now for police officers in the area because the officers were gunned down while sitting in their cars doing nothing wrong. He says the department has doubled up its officers to better protect them.
The first officer, an Urbandale officer, was shot about 1:06 a.m. About 20 minutes later, a Des Moines officer was found shot about 2 miles away.
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4:50 a.m.
Authorities say two police officers in the Des Moines, Iowa, area were shot to death in ambush-style attacks about 2 miles apart.
The Des Moines Police Department said in a news release that 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.
Des Moines officers responded to help. About 20 minutes later, a Des Moines officer was found shot about 2 miles away. Both officers have died.
The Des Moines Police Department said suspect information is being developed. The agency didn't immediately release any other information but said a news conference was planned for 5 a.m.
Urbandale is a city in the Des Moines metro area.
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4:30 a.m.
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.
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. The agency didn't immediately release any other information but said a news conference was planned for 5 a.m.