U.S. says Russia response to Ukraine drone attack not over, expects more strikes

The United States believes that Russian President Vladimir Putin's threatened retaliation against Ukraine over its drone attack last weekend has not happened yet in earnest and is likely to be a significant, multi-pronged strike, U.S. officials said. The timing of the full Russian response was unclear, with one source saying it was expected within days. A second U.S. official said the retaliation was likely to include different kinds of air capabilities, including missiles and drones. The officials spoke on condition of anonymity. They did not detail Russia's expected targets nor elaborate on intelligence matters.