WASHINGTON, Jan. 15 (Xinhua) -- U.S. President Barack Obama talked on the phone with Haitian President Rene Preval Friday morning, pledging full support to the quake-stricken country, the White House said.

    Obama spoke for roughly thirty minutes with Preval. He said the world has been devastated by the loss and suffering in Haiti, and pledged full support of the United States for the government and people of Haiti. He promised both immediate recovery effort and long-term rebuilding support.

    Preval said he has been "touched," and expressed condolences for the loss of U.S. citizens in Haiti. He said the needs are "great," and relief from both the United States and many other countries is now flowing in to the people of Haiti.

    The two presidents underscored the need to closely coordinate assistance efforts among the various parties, including the Haitian government, the United Nations, the United States and the many international partners and aid organizations on the ground.

    Obama has announced a 100-million-dollar emergency assistance for Haiti, and made relief efforts there a top priority for his administration, vowing to mobilize "every element" of the U.S. government.

    It was the first time Obama successfully made direct contact with Preval since the devastating earthquake Tuesday. He made unsuccessful efforts to contact Preval Wednesday, as Preval's presidential palace was badly damaged during the massive earthquake.