MONCKS CORNER - A woman walking along U.S. Highway 17A was struck and killed early Saturday by a drunk driver who initially fled the scene, authorities said. In an unrelated wreck, a 30-year-old man died in a single-vehicle collision.

Sedaris Mabry, 55, was struck by a pickup truck as she was walking along North Live Oak Drive, also known as Highway 17A, near Berkeley Middle School, Berkeley County Coroner Bill Salisbury said.

The pickup truck, which was towing a boat, was traveling south about 12:45 a.m. when it struck the pedestrian, said Sgt. Bob Beres of the S.C. Highway Patrol. The pickup truck did not stop at the scene but was pulled over nearby later, Beres said.

The driver of the pickup, Michael Ronnie Stephens, 41, of Judith Drive in Summerville, is charged with driving under the influence, having an open container and leaving the scene of an accident involving death, Beres said. He was being held at the Hill-Finklea Detention Center pending a bond hearing.

Stephens, who was wearing a seat belt, was not injured, Beres said. Neither was his passenger, a 42-year-old man.

In an unrelated incident later Saturday, 30-year-old Andra Robinson of Moncks Corner was driving south on S.C. Highway 45 near Rend Road when he ran off the right side of the road and hit a tree, the Coroner's Office said.

Robinson was pinned in the vehicle and had to be extricated by firefighters and the rescue squad. He was taken to a local emergency room and pronounced dead.

According to the Highway Patrol, Robinson was not wearing a seat belt.