U.S. President George W. Bush warned Syria on Tuesday that it faces growing isolation because of its failure to stop foreign fighters entering Iraq and its actions in Lebanon. "These people are coming from Syria into Iraq and killing a lot of innocent people," Bush told reporters following a meeting at the White House with Iraqi President Jalal Talabani. "They're trying to kill our folks as well. And the Syrian leader (President Bashar Assad) must [have] understood, we take his lack of action seriously. The [Syrian] government is going to become more and more isolated as a result of two things; one, not being cooperative with the Iraqi government in terms of securing Iraq and, two, not being fully transparent about what they did in Lebanon," the president said.Bush did not specify what Syrian actions in Lebanon he was referring to but Damascus and its allies in the then-Lebanese government have been widely blamed for the February 14 bomb blast that killed former Lebanese Prime Minister Rafik Hariri. The U.S. ambassador to Iraq, Zalmay Khalilzad, issued a strong warning to Damascus on Monday over providing help to radical groups in Iraq and said "our patience is running out." When asked about U.S. response, Khalilzad said "all options are on the table," including military. "I would not like to elaborate more, they should understand what I mean."