Washington: US President Barack Obama has reached out to several world leaders as part of his effort to build an international consensus on Syria where the Assad regime continues to use force on protesters demanding his

The White House said Obama called the Saudi King and the British Prime Minister on Saturday.

Obama and King Abdullah of Saudi Arabia expressed their shared, deep concerns about the Syrian Government's use of
violence against its citizens, the White House said.

"They agreed that the Syrian regime's brutal campaign of violence against the Syrian people must end immediately, and
to continue close consultations about the situation in the days ahead," it said.

"The President also reaffirmed the long-term commitment of the United States to the region's peace and security, the
statement said.

In his telephonic call with British Prime Minister David Cameroon, Obama discussed the situation in Syria.

The two leaders reiterated their deep concern about the Syrian government's use of violence against civilians and
their belief that the Syrian people's legitimate demands for a transition to democracy should be met.

"They agreed on the need for an immediate halt of all bloodshed and violence against the Syrian people.

They also agreed to closely monitor the actions that the Syrian government is taking and to consult on further steps in
the days ahead," the White House said.

"In addition, the two leaders discussed recentdevelopments in the global financial system, Libya and

The Prime Minister expressed his condolences for the loss of life resulting from the August 6 downing of the US
helicopter in Afghanistan.

The President joined the Prime Minister in welcoming the return of public order following several days of looting and
violence in a number of British cities," the White House said.