UNITED NATIONS (AP) — The United States accused Rwanda on Friday of violating a U.S.-brokered peace agreement by backing a new and deadly offensive in the mineral-rich eastern Congo and warned that the Trump administration will take action against “spoilers” of the deal.

The remarks by U.S. Ambassador to the United Nations Mike Waltz came as more than 400 civilians have been killed since the Rwanda-backed M23 rebels escalated their offensive in the South Kivu province in eastern Congo, according to regional officials. These officials also say that Rwandan special forces were in the strategic city of Uvira.

“Rwanda is leading the region towards increased instability and war,” Waltz said. “We will use the tools at our disposal to hold to account spoilers to peace.”

He called on Rwan

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