Updated 10:55am: Market Basket released the following statement in response to this story:

“Due to a service disruption by a third party vendor, some locations are experiencing intermittent delays in transaction processing.  Through the team working together, we are confident that all temporary disruptions will be resolved shortly, and we apologize for any inconvenience to our valued customers.”

It’s not business as usual at multiple Market Basket Stores in Massachusetts, including at the Pawtucketville location and at Stadium Plaza on the Lowell-Tewksbury line, with at least one report indicating the disruption might be due to some type of cyber attack.

Sources also tell us at least one store in New Hampshire has been affected, and there is a news report out of New Bedford indicating that store is also affected, bringing into question whether this is a system-wide issue.

Early morning shoppers in Pawtucketville were greeted with a sign on the door stating; “Cash only, no Credit, Debit, EBT, WIC, thank you.” However, one shopper at Stadium Plaza tells us they are now able to process some credit card transactions, but not all.

An earlier report from a shopper indicated a store cashier told him the issue was due to a “cyber attack,” though that is not confirmed by any Market Basket officials, and one Inside source tells us there is no indication of a cyber attack at all.

Stay with InsideLowell for more information as it becomes available.