Haverhill Police arrested three people over the weekend on drunk driving charges during separate incidents.
Police report 36-year-old Derrick Mitchell of Haverhill was arrested shortly after 2 a.m., Sunday, on South Main Street. He is charged with operating a motor vehicle under the influence, negligent operation and a marked lanes violation.
On Saturday, 32-year-old Justin H. Shepard of Haverhill was arrested at 5:45 p.m. on Bethany Avenue for a charge of operating under the influence of liquor.
Also, 24-year-old Patrick Grant of North Andover was arrested at 1:20 a.m., Saturday, at 587 South Main Street, on a similar charge. All three are due to appear in Haverhill District Court.