The Russian military has halted cooperation in the past - notably after President Donald Trump ordered the launch of missiles against a Syrian air base in April - and it was not clear whether the latest action would be lasting.
Clashes between Syrian troops and SDF would escalate tensions in the country and open a new frontline in the many complex battlefields of the civil war, now in its seventh year.
Updated at 8:51 a.m.
Russian Federation on Monday threatened to target global coalition aircraft flying over Syria in a sign of the mounting tensions in the region after an American fighter jet downed the Syrian government's warplane.
The escalation comes a day after the U.S. shot down a Syrian air force jet.
The ministry also called on the United States military to provide a full account of why it chose to shoot down the Syrian SU-22.
The coalition said the Syrian warplane had been shot down "in accordance with rules of engagement and in collective self-defence of Coalition partnered forces".
Historic Brexit divorce negotiations begin in Brussels
A key issue he did not mention was the EU's bill for Britain to leave, which Brussels estimates at a colossal 100 billion euros. British foreign minister Boris Johnson , like Davis a prominent backer of the leave campaign, also sounded an upbeat note.
The Syrian government this month marched into Raqqa province from the west but had avoided conflict with the us -backed SDF until the latest incident.
"As of June 19, Russian Defense Ministry ended its interaction with the US under a memorandum for preventing incidents and providing safe flights during operations in Syria", the ministry said in a statement.
Russian Defense Ministry has denounced the U.S. aggression and violation of Syria's sovereignty with the attack on the SU-22 fighter jet, whose pilot was catapulted, but his whereabouts are still unknown.
The downing of the government plane is the first time an American aircraft engaged in an air-to-air combat over Syria.
The truce that went into effect Saturday came after some of the worst fighting in months between rebels and pro-government forces.
As per the statement, the coalition headquarters in Iraq has said that an F/A-18E Super Hornet shot down a Syrian Su-22 that had left bombs near positions taken by the Syrian Democratic Forces (SDF). The Coalition's mission is to defeat ISIS in Iraq and Syria.
It said several hours earlier, regime forces had attacked the SDF in another town near Tabqa, wounding several and driving the SDF from the town.