Here is the latest Iowa news from The Associated Press at 3:37 a.m. CDT

CEDAR RAPIDS, Iowa (AP) — An Iowa sheriff says one of his deputies has been charged with assault after an off-duty confrontation with a fellow patron at a bar. Linn County Sheriff Brian Gardner says that he finds the allegations against deputy Robert Amos “extremely concerning” and that he has placed him on paid leave pending an internal investigation. Gardner says Amos was arrested late Tuesday after a disturbance at a bar in Lisbon called Beau Dylan’s.

CEDAR RAPIDS, Iowa (AP) — Police in Cedar Rapids saying a man is fighting for his life after being shot in a gas station lot, and officers are now searching for a suspect. Cedar Rapids police say in a news release that the shooting happened just before 8 a.m. Wednesday at a Kum & Go gas station. A man in his 20s was found with critical injuries and rushed to a hospital with life-threatening injuries. Investigators believe the man was targeted.

MORAVIA, Iowa (AP) — Law enforcement officials in southern Iowa say a woman has died following an explosion involving an oxygen tank. The Appanoose County Sheriff’s Office says in a news release that firefighters and medics were called to a home in Morovia shortly after 1 p.m. Wednesday. A woman was found on the kitchen floor and pronounced dead at the scene. Investigators say she had been using an oxygen machine for medical purposes when an unknown ignition source caused an explosion and fire.

AMES, Iowa (AP) — Iowa State officials say they’re still investigating the fall of a man onto other football fans below at Jack Trice Stadium. The university says the fan tumbled from the second level on the stadium’s east side during the first half Saturday of the game against Oklahoma State, which the Cowboys won, 34-27. University spokeswoman Angie Hunt said Wednesday that she couldn’t yet clarify how many people were injured or say whether the fan who fell remained hospitalized. Names haven’t been released.