Michael Buster can't believe his bad fortune. He said he's been abducted and robbed twice in three days, both times while in his friend's car.

The most recent incident began Tuesday night, while he was sitting in a Toyota Camry at the men's dormitory parking lot at Charleston Southern University. He and Riana Bishop, 18, a CSU student, were in the car waiting for Andrew Hall, who owns the car, to get out of class.

Two men came up to the car, one wearing a mask and the other brandishing a gun, Buster said. The robbers got in the back seat, pointed a gun to the back of his head and told him to drive, he said.

Buster said he followed orders from the gunman, who told him where to drive and which way to turn. The instructions led them to the nearby Atlantic Palms apartments, where the robbers took all of their cash (about $30) and fled, Buster said. No one was injured.

The university was placed on lockdown as a precaution. An alert system sent out nearly 6,000 automated phone calls, e-mails and text messages to students, parents and faculty.

North Charleston police released no new information about the case or any suspects on Wednesday.

Buster said the gunman was black, about 24, with short, curly hair, and wearing black pants and a black hooded sweatshirt. He was about 5 feet 10 inches tall and about 150 pounds. He described the masked man as black, about 6 feet tall and about 175 pounds. He wore an orange hooded sweatshirt.

Buster, who lives out of state and is visiting the area on vacation, said that he and Hall were in the car Sunday night at a friend's house in the Sangaree community when two white men approached them with guns, got in the car and forced them to drive to a teller machine to withdraw cash. He said the men then stole some items from them and ran away.

"Both times I was driving his car, and both times I got robbed," Buster said.

Hall did not return a phone call seeking comment.

Buster said they didn't report that incident to police. "They're not going to catch them," Buster said. "There's really nothing they can do."

Another robbery was reported last month in a West Russel dormitory room at the university, where a student was robbed at gunpoint. Two men were charged in that incident and remain at the Charleston County Detention Center.

Junior Sarah Catenacci said she's never been worried about walking around campus at night, but after the last two incidents, she will try not to walk alone.

"Stuff like this shows you how anything can happen," Catenacci said. "I'll definitely be more cautious."