Three House members sent a letter to the General Accountability Office (GAO) asking it to examine the scope of U.S. funding to the Palestine Investment Fund (PIF), JTA reported.

The letter, signed by Reps. Ted Deutch (D-FL), Steve Israel (D-NY) and Nita Lowey (D-NY) and sent on May 8, voices concern about the PIF’s lack of transparency.

“We are also troubled by reports that Palestinian Authority President Mahmoud Abbas has stated his intent to use PIF funds to build housing for convicted terrorists responsible for killing Israeli citizens,” the letter states.

The letter also highlights the role of the Islamist terrorist organization Hamas.

"The possibility that Hamas is controlling aspects of the PIF is particularly troubling given the ambiguity surrounding the amount of U.S. taxpayer dollars contributed to the PIF,” the lawmakers write.