WASHINGTON (AP) - The first sign of cracks in President-elect Barack Obama's foreign policy team of rivals emerged on Monday as his choices for secretary of state and U.S. ambassador to the United Nations visited the State Department.

As Secretary of State-pick Hillary Rodham Clinton and U.N. envoy-choice Susan Rice separately visited the diplomatic agency's headquarters in Washington's Foggy Bottom neighborhood, persons familiar with the transition said that Rice wants to install her own transition team inside the department.

Such a move by an incoming U.N. ambassador is rare, if not unprecedented, because the job is based at the United Nations in New York, where Rice already has a small transition staff, the sources familiar with the incoming administration.

The push by Rice, an early Obama supporter whose position the President-elect wants to elevate to a cabinet post, is also a signal that she intends to use her influence with the new president to play a more significant role than previous U.N. envoys, they said. The transition sources spoke on condition of anonymity to discuss internal deliberations.

It was not clear if Clinton and Rice—who had strained relations during the Democratic primaries because of Rice's steadfast backing of Obama—saw each other at the State Department as Clinton left the building shortly after Rice arrived.

During the presidential campaign, some Clinton aides saw Rice's early decision to back Obama as a betrayal because of her previous role as a high State Department official during President Bill Clinton's administration. Rice's desire to place her own team in Washington could fuel speculation that those tensions will carry into the new administration.