United Parcel Service Inc. (UPS) said Friday that some of its U.K. package operations have been out of service for a week or more after a government inspection earlier this month found “areas of concern” that it’s working to rectify.

The company declined to provide details on the security issues but said they should be resolved soon.

“We are expecting our service levels to return to normal early next week,” said Susan Rosenberg, a U.S.-based spokeswoman for UPS.

The British government Friday said that it had restricted air-cargo screening by UPS due to security concerns. Rosenberg said some of the company’s U.K. package operations have been out of service for at least a week, although she didn’t cite a precise date for the interruptions.

UPS has put contingencies in place to reroute some packages, Rosenberg said, and has notified some customers of potential delays.

She declined to quantify the amount of package volume affected by the disruption but noted that “we still have packages moving in and out of the U.K.”

The U.K.’s Department for Transport in a statement said: “We can confirm that, following careful consideration, the department has restricted the number of sites in the U.K. at which UPS Ltd. is permitted to screen air cargo until it has satisfied current security requirements.”

It didn’t provide details, and it was unclear whether other logistics companies were subject to similar restrictions. Rosenberg said the security concerns regarding UPS arose from a scheduled inspection by the agency.

A FedEx Corp. (FDX) spokeswoman said Friday that its U.K. operations “continue as normal.”

Security screening of packages on cargo flights has been an issue of concern for security officials. In October, a bomb concealed in toner cartridges was discovered at a FedEx cargo facility in Dubai, and another was intercepted at a UPS facility in England.

(Source: WSJ)