Two police officers have been killed in “ambush style attacks” in the US state of Iowa.
The first officer was found shot in the Urbandale area of Des Moines at 01:06 local time (06:06 GMT) on Wednesday. The second was found 20 minutes later several blocks away.
Both were sitting in their patrol cars when they were attacked, Suspect information was being developed, the motive for the attacks is unclear.
Police said there was a “clear and present danger” to officers in Des Moines and Urbandale.
“There’s somebody out there shooting police officers,” Sergeant Paul Parizek told reporters.
“We hope we find him before anybody else gets hurt. We definitely don’t want anybody in the public, here in the community to get hurt but there’s a clear and present danger to police officers right now and we’ve doubled up our officers.”
Police in Urbandale had taken the same precautions, Sgt Parizek added.
All schools in Urbandale are to stay closed on Wednesday following police advice, local TV station KCCI reported. School staff have been told to stay away.