President Barack Obama on Monday telephoned Spanish Prime Minister Mariano Rajoy to speak with him about the evolution of the eurozone crisis and the situation in Syria and Sudan, the White House announced.

"The president just concluded a call with Prime Minister Rajoy of Spain. They discussed economic conditions in the eurozone," White House spokesman Jay Carney said at the beginning of the daily press briefing.

Obama acknowledged the "difficult challenges" facing the Spanish people and "reiterated his support" for Rajoy's efforts to get Spain's economy back on track, the White House said in a subsequent statement.

The U.S. leader also spoke with Rajoy about the situation in Syria, welcomed Madrid's contributions to the process known as "Friends of Syria" and mentioned the "positive development" of an agreement between Sudan and South Sudan to share oil revenue, the announcement added.

Obama's phone call was another element in the president's decision to hold regular conversations with European leaders about the economy of the eurozone, the White House said.

Last week, Obama spoke by phone with French President Francois Hollande and Italian Premier Mario Monti.

The U.S. president in recent months on several occasions has urged European leaders to take measures to control the eurozone crisis and prevent it from spreading to other regions of the world.

Obama's reelection chances in November seem to be linked to the recovery of the U.S. economy, the main concern among voters and a situation that is closely tied to the development of the European crisis. EFE