A contract postal unit located behind Billy's Bakery on Black Rock Turnpike closed at the end of business Monday, but U.S. Postal Service officials say they are looking for a new location in the area.

Until then, the 125 post office boxes that were housed at Katona Corner, 1881 Black Rock Turnpike, have been temporarily relocated to the U.S Post Office at 357 Commerce Drive, according to spokeswoman Christine Dugas.

Dugas said postal officials were notified of the closing Friday. A sign on the door said the closure was due to economic reasons. "I am sorry that we have to do this. Thank you to all of my customers for their business. I will miss you all. Bob," the sign reads.

"It was closed by the operator for personal reasons," Dugas said. "We are looking for a new location" for the contract postal unit, or CPU, she said, and anyone interested should contact the local postmaster. "A CPU is like a supply/lease site," Dugas said, "usually located in a small store." The CPU provides stamps and postal supplies at the same price as a post office.

The CPU moved to Katona Corner after Sprouts for Better Living, 2179 Black Rock Turnpike, where it had been located, closed suddenly in September 2009. The Katona Corner site opened that November.

The Commerce Drive postal facility's hours are 9 a.m. to 5 p.m. Monday through Friday and 9:30 a.m. to 1 p.m. Saturday, although the lobby is open 24 hours for box holders.

"Their zip code will stay the same and they can use the same key," Dugas said of the affected box holders, although she added that some of the larger boxes may require a new key.