U.S. officials released footage of this week’s collision between a U.S. drone and a Russian fighter jet over the Black Sea. American officials said the drone had been flying over international waters before it was forced down. Secretary of State Antony Blinken told reporters Wednesday that the United States is investigating the incident, calling it “reckless and unsafe.”

Here’s the latest on the war and its ripple effects across the globe.

But collisions during intercepts are rare, even when involving drones. Analysts and officials warn that the war in Ukraine has only heightened the stakes, and the incident has fueled concern about the potential for the war in Ukraine to escalate into direct conflict between the two superpowers.