A Hannaford employee loads a jack with products in one of the numerous aisles in the warehouse at the distribution center in South Portland in 2014. (Tim Greenway/Portland Press Herald)

The union representing employees at a Hannaford distribution center in South Portland have agreed on a three-year contract weeks after workers went on a one-day strike.

“United Food and Commercial Workers 1445 has accepted Delhaize America Distribution LLC’s original offer, which was a fair and competitive agreement. Delhaize America Distribution LLC is pleased the situation is now resolved and looks forward to continuing to serve its customers,” said Christy Phillips-Brown, spokeswoman for Delhaize America Distributors, in a statement. She did not respond to a request for details of the contract. Ahold Delhaize is the parent corporation of Hannaford Supermarkets, based in Scarborough.

There are 246 workers represented by UFCW 1445 at the Hemco Road distribution center. The warehouse is operated by Delhaize America Distribution, a subsidiary of the Netherlands-based Ahold Delhaize.

The distribution center supplies 103 Hannaford supermarkets in New England, including 63 stores in Maine.

Workers rejected the company’s final contract offer Feb. 17 and authorized a strike. The next week, workers walked off the job in a 24-hour strike ahead of negotiations.

Union members wanted the company to address high health insurance costs and pull back a proposed pay cut for new workers.

This story will be updated.