The Fourth of July fireworks display in North Myrtle Beach was stopped about six minutes into the event, when a large fireworks shell exploded prematurely.
According to North Myrtle Beach City Spokesman Pat Dowling, a Zambelli Fireworks worker was hurt.
The worker has been released from the hospital, according to Dowling.
Dowling adds the man had minor cuts, bruises and burns.
The explosion blew an estimated two foot by three foot hole into the Cherry Grove pier and damaged about four feet of pier railing.
The show ended when the accident happened.
Zambelli determined that the safest way to remove the remaining explosives from the pier was to launch the remaining shells. So fireworks went off after the accident, even though the show was over.
The North Myrtle Beach Fire Department is investigating to determine what caused the early explosion.
By noon Friday the hole was repaired and the pier re-opened for business, according to Dowling.