Maui authorities Wednesday charged a 46-year-old police officer for allegedly slapping his 13-year-old daughter, who fell and sustained a concussion.

Nelson Johnson was arrested today and charged with abuse of a family and household member. His bail was set at $1,000.

The 18-year Maui Police Department veteran allegedly got into an argument with his daughter.

Police said the girl fell back and hit her head 9:40 p.m. Tuesday on a wall-mounted air conditioning unit, sustaining a concussion. She was taken to  the Maui Memorial Medical Center and later released in good condition.

Johnson was also arrested for second-degree assault, but was not charged with that crime, although the case is still being investigated, police said in a news release. Johnson is on administrative leave, pending further investigation.