"Closing clubs is never easy and we're committed to working with impacted members and associates through this transition", the tweet stated.
Reports indicate that customers and employees arrived at some locations to find doors at the massive retailer to be locked.
Town Manager Bill Manzi said he received a call from the Seabrook store manager on Thursday confirming the closure of the store at 11 Batchelder Road.
A call to the store is answered by this message: "This location is closed effective January 11", adding that shoppers are welcome to visit other locations throughout the state.
Sam's Club now has 597 store locations in 46 states, compared to BJ's, which operates 215 clubs and 133 BJ's Gas locations in 16 states across the country.
Separately, multiple sources said the company was planning to shutter 63 Sam's Club warehouse stores around the country in the coming weeks.More news: Germany to cap yearly refugee arrivals at about 200000: Coalition paper
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"We need great people to help lead us into the future and we hope that many of them will stay with the company at either a local store or club", Sam's Club president John Furner said.
Walmart on early Thursday announced the pay raise and touted the announcement on its Twitter feed with a group of smiling employees giving a thumbs-up gesture.
"Hourly associates will continue receiving compensation for 60 days while they look for other opportunities in nearby clubs or Walmart stores", she said.
Employees with at least 20 years at Walmart will qualify for the bonus, the company said, and the wage hike will take effect February 1.
The expanded parental leave policy would provide full-time hourly workers with 10 weeks of paid maternity leave and six weeks of paid parental leave. Previously, the company didn't offer any paid leave for them. McMillon says that the company will also contribute $5,000 to employees who plan to adopt a child to offset associated costs.