WASHINGTON, May 7 (UPI) -- U.S. forces are investigating two contracts to build schools in northern Iraq that required bathroom fixtures to be supplied by Iran.

The new elementary and middle schools built in Erbil were also authorized by a South Korean member of coalition forces, against U.S. contracting rules, but officials say this practice has been stopped and corrected.

The contracts for both the Sarwaran Primary School and Binaslawa Middle School, in the capital of the Kurdistan Region of Iraq, "required that the bathroom fixtures be produced in Iran, which is currently under United States trade sanctions," according to two recent reports by the U.S. Special Inspector General for Iraq Reconstruction.

The Binaslawa school bathrooms had not been furnished at the time of the Feb. 4 SIGIR inspection. There were three sinks and four toilets installed in each of the four bathrooms in the Sarwaran school, however.

"The contract required the wash basins and water closet fixtures be Iranian-made products," the report said. "Although we could not conclusively verify that the products were made in Iran, we noted that a Web site for the sink brand (www.chininam.ir) was an Iranian site."