Two North Charleston area businesses were held up Wednesday, authorities said.

A liquor store on Dorchester Road was robbed in the afternoon by a knife-wielding man. Earlier in the day, a check-cashing business on Ashley Phosphate Road was robbed by a man armed with a gun.

Authorities have not said if there is any connection between the two robberies.

About 2 p.m., a man walked into Carolina Spirits at 8350 Dorchester Road and displayed a knife to the clerk, said Spencer Pryor, public information officer for the North Charleston Police Department.

The robber demanded money and fled with an undetermined amount of cash, Pryor said. No one was injured.

The suspect was described as a black man with dreadlocks, in his late 20s to early 30s, wearing a gray or black shirt and a hat.

Anyone with information about the robbery is asked to call North Charleston police at 554-5700 or Crime Stoppers at 554-1111.

In the other robbery, a man entered the Check Into Cash store about 10:30 a.m. at 3748 Ashley Phosphate Road in unincorporated Dorchester County, pulled out a gun and demanded money, Dorchester County sheriff's Maj. John Garrison said.

The robber ran away toward Windsor Hill apartments.

The suspect was described as a black male wearing a gray shirt and a tan hat.

He was armed with a black handgun.

The same store was robbed in September 2009 and again on July 16 of this year.

Anyone with information is asked to call the Dorchester County Sheriff's Office at 873-5111 or Crime Stoppers at 554-1111.