Charleston Southern University on Thursday announced plans to enhance safety at the private school in North Charleston after recent robberies.

About 3,330 students are enrolled at the university, and nearly 1,100 of them live on the 300-acre campus on U.S. Highway 78.

Officials said their safety is of the utmost importance while the school continues to focus on its mission to educate them in a Christian environment.

"We are continuously reviewing and enhancing our safety and emergency procedures in light of recent events," said Doug Dickerson, director of university relations.

He said armed officers and more vehicles will be added to the campus security force. Evening patrols will be increased as well.

Now there will be checkpoints at the entrance to the campus at night.

"It's just checking who's coming and going," Dickerson said. "Tentatively, what we're looking at is 10 p.m. until 6 a.m., but we don't want that to be set in stone. What we're trying to do is keep some flexibility with the schedule."

More surveillance cameras will be installed, and the school plans tocontinue educating students about safety as well.

Officials will make students aware that emergency telephone stations are positioned across the grounds and that they will ring a caller straight through to the security office.

The school has a zero-tolerance policy for illegal drugs, and students who violate the policy will face immediate suspension, Dickerson said. He said the school will continue its practice of using drug-sniffing dogs.

"You can see by this list (of security changes) that our students, faculty and staff, their safety comes first," Dickerson said. "We're going to continue to do all we can to protect them."

A student and her acquaintance reported that they were abducted at gunpoint Tuesday night from the men's dormitory parking lot and taken to a nearby apartment complex, where they were robbed of their cash. No arrest has been made in the case.

A student was robbed at gunpoint in his West Russell dormitory room on Oct. 6.

One student and a former student were arrested and charged in that case.

They remain at the Charleston County jail.