CAIRO — The spokesman for Egypt's interim president is decrying "foreign pressure" in a strongly worded message that appears to indicate Cairo's uneasiness toward a flurry of visits by American, European and Gulf envoys aimed at mediating a standoff with supporters of the ousted president.

Ahmed el-Musalamani, a spokesman for interim president Adly Mansour, told reporters on Tuesday that "foreign pressure has exceeded international standards."

He didn't elaborate.

His comments came a day after U.S. Deputy Secretary of State William Burns met with Khairat el-Shater, a top leader in Morsi's Muslim Brotherhood group.

His visit and that of EU and Gulf officials are seen of ways to mediate a standoff between Morsi's supporters, camped out in two sit-ins to protest the July 3 coup, and the government.