US President Barack Obama says he will remain "cautious" about a ceasefire in war-ravaged Syria, citing the "difficult" situation the country, Press TV reported.
Obama made the comments after a meeting with Jordan's King Abdullah II at the White House on Wednesday.
The ceasefire, which was set to start on Saturday, was announced after negotiations between Russia and the US, both of which have been engaged in airstrikes in the Muslim country.
"We are very cautious about raising expectations on this," Obama said. "The situation on the ground is difficult."
At the end of the road, efforts by Russia and the US are supposed to bring the focus of the complicated war to Daesh Takfiri terrorists, which the US president described as "something that right now they... are not focused on."
Washington and some of its allies have been conducting airstrikes against what they call Daesh positions in Iraq and Syria.
Obama sounded more optimistic later, saying, "We have seen modest progress over the course of the last week or so with respect to humanitarian access to populations that are threatened."
Potential "lessening of the violence" following the truce, could bring about "the basis to build a longer term ceasefire," he added.
The Jordanian king, for his part, voiced optimism about "the level of support from the United States," stressing that with Washington at helm "the future looks much better."
Described by Obama as a country that "punches above its weight when it comes to the fight against ISIL," Jordan is where the terrorists were initially trained by the CIA in 2012 in an attempt to finally bring down the Syrian government.
According to Bloomberg, the United States has so far provided $4.5 billion to the small country that also hosts many Syrian refugees escaping from violence towards the borders.