Police arrested a 20-year-old Mililani Mauka woman for allegedly stabbing her sister on Sunday.

A 23-year-old man who does not have a local address was also arrested in the case.

According to police, the female suspect attacked the 23-year-old victim with a knife then, along with the male suspect, held her against her will and forced her to make online purchases.

Police said the suspect and victim live together.

Both suspects were arrested on suspicion of second-degree attempted murder and first-degree robbery.