Rubio denied any U.S. policy change after Zelenskyy said Kyiv's advance-warning flow for Russian ballistic-missile attacks was working again following their phone call. [S1][S3]
Before the reported resumption, Zelenskyy had said for at least a week that Ukraine was not receiving early warnings about ballistic missiles aimed at the capital. [S1]
The reported warnings are intended to provide more time for civilian alerts and sheltering and for military interception attempts. [S1][S2]
Verification result: verified, because the Associated Press account and The Guardian independently report that the warning flow resumed and both place Zelenskyy's Rubio call earlier in the sequence. [S1][S3]
Rubio's denial challenges an inference that U.S. policy formally changed, but it does not directly refute Zelenskyy's narrower assertion that the warnings were working again. [S1][S3]
Because the distinct reports attribute the operational claim to Zelenskyy, the supplied evidence verifies his statement but does not independently establish the warning system's technical mechanism, scope or duration. [S1][S2][S3]
