OfficeDepot.com is currently down

If you were planning to visit the Office Depot website they appear to be down at the moment. Not sure if it is a scheduled upgrade or something unexpected happened. The message on their website says:

Our system is currently experiencing difficulties. Please try again later.

For immediate orders please call 1-800-GO-DEPOT (1-800-463-3768) - option 1

We thank you for your patience as we continually work to improve our system, and apologize for any inconvenience this may have caused.