Gov. Terry McAuliffe’s political action committee is returning a $25,000 donation from a company with ties to Angola’s state-owned oil company after receiving questions from The Associated Press about whether the contribution was legal.

Officials at Common Good Va. initially believed the donation on June 29 was legal. But nearly a month later, the PAC said it is returning the money because officials at Glinn USA Investments are unwilling to certify that the contribution was legal under federal law, which prohibits campaigns at any level from accepting money from outside the U.S.