UPDATE 10:12 a.m. EST:
The Russian defense ministry said it will treat U.S.-led coalition planes west of the Euphrates River in Syria as targets after a Navy pilot shot down a Syrian Air force jet on Sunday.
The ministry called on the U.S. military to provide an account of why it shot down the Syrian SU-22. The jet was shot down after it dropped bombs on rebel forces partnered with the U.S.
BREAKING: Russia says it will treat US-led coalition planes in Syria, west of the Euphrates, as targets after US downed Syrian jet.— The Associated Press (@AP) June 19, 2017
UPDATE 8:19 a.m. EST: Russia said it will treat U.S.-led coalition planes as targets.
ORIGINAL STORY: The U.S. military released a statement Sunday saying a Navy fighter jet shot down a Syrian Air Force fighter jet that had dropped bombs on rebel forces aligned with the U.S. in fighting ISIS.
The statement from the U.S.-led coalition noted that its focus remains on fighting ISIS and not the Syrian regime or Russian forces, adding that the U.S. military "will not hesitate to defend Coalition or partner forces from any threat."
Several U.S.-backed Syrian Democratic Forces (SDF) fighters were wounded when they came under attack by Syrian forces aligned with President Bashar al-Assad at approximately 4:30 p.m. in the town of Ja'Din, which isn't far from Tabqa, Syria. SDF recently reclaimed Tabqa from ISIS.
"Following the Pro-Syrian forces attack, the coalition contacted its Russian counterparts by telephone via an established 'de-confliction line' to de-escalate the situation and stop the firing," a statement from Operation Inherent Resolve noted.
Then, at 6:43 p.m. Syria time, a Syrian regime SU-22 dropped bombs near SDF fighters south of Tabqa, which prompted the U.S. to fire back "in collective self-defense."
After the Syrian Air Force fighter jet was shot down, the U.S. said in a statement: "The demonstrated hostile intent and actions of pro-regime forces toward coalition and partner forces in Syria conducting legitimate counter-ISIS operations will not be tolerated."
This is just the latest escalation between the U.S.-led coalition and pro-regime Assad forces in recent weeks.
The Associated Press contributed to this report.