A man has been arrested after allegedly robbing and leaving a 91-year-old woman tied up for about 12 hours.

Delaware State Police have charged 26-year-old Dustin Niebert with home invasion, robbery, assault and other offenses.

Police say Niebert entered the home in Milford about 3 a.m. Monday while the woman was sleeping, tied her up and stole cash and jewelry. They say he then fled in the woman's car.

Officers say a relative of the woman found her still tied up about 3:30 p.m. The victim was hospitalized with non-life-threatening injuries.