An argument between a brother and sister ends with the brother getting shot. 

The shooting happened Tuesday around 1 p.m. in the 100 block of Terry Street. 

According to police, the two have been arguing for a few weeks. 

The brother arrived at the father's house, where the sister lives. 

They got into another argument and that is when she shot him, police stated. 

He was taken to Brooke Army Medical Center and is in critical condition. 

The sister was arrested at the scene and taken in for questioning. 

The father of the two, who witnessed the shooting, was questioned by police.