Here is the latest Iowa news from The Associated Press at 3:30 a.m. CST

BETTENDORF, Iowa (AP) — Iowa authorities are investigating after a Bettendorf police officer shot and killed a man who was involved in a domestic dispute. Bettendorf Police said officers were called to a home around 12:15 a.m. Sunday because of a dispute between a man and a woman but the couple left the area before officers arrived. About an hour and a half later, the man and woman were found in a vehicle. Police say the woman exited the vehicle and told officers the man had threatened to kill her with a handgun. Police said the man refused to comply with officers’ commands before an officer shot him during the confrontation.

CEDAR RAPIDS, Iowa (AP) — Two firefighters were seriously injured Sunday when a hose line failed while they were battling a blaze at a Cedar Rapids apartment complex. The Cedar Rapids Fire Department said one firefighter was struck in the head and knocked unconscious and another was struck in the chest and knocked down when the hose line failed around 1:30 a.m. Sunday. Neither injury was believed to be life-threatening. Firefighters were called to the eight-unit apartment building around 1:15 a.m. Sunday after smoke alarms were activated inside the building. It took more than an hour to bring the blaze under control as firefighters dealt with frigid temperatures.

COUNCIL BLUFFS, Iowa (AP) — A Nebraska man was hospitalized after a standoff with police that took place Friday at a construction site in Council Bluffs. Council Bluffs Police said 40-year-old Ryan Linehan of Omaha was arrested after the standoff after he shot himself in the lower jaw. He was in stable condition afterward at an Omaha hospital. The standoff began Friday morning when officers tried to arrest Linehan on a warrant for first-degree sexual assault. When officers approached, Linehan ran back to the excavator he had been operating and swung the equipment’s bucket at the officers. Negotiators spent several hours trying to persuade Linehan to surrender before he shot himself.