Textile group Avondale Mills is to axe 350 workers from its operations in Graniteville, Aiken County, in the aftermath of damage from a train derailment in January.

Parts of Avondale's mills were badly affected by the train derailment and resultant chlorine leak in January that killed nine people.

Avondale said it needs to close a weaving division at one plant and a yarn unit at another in order to clean and repair equipment damaged by the incident.

Long-serving workers affected by the lay-offs will be given the opportunity to apply for jobs in other company plants.

The company aims to take back the workers when restoration is complete.