President Vladimir Putin said Friday that Russia will continue to test and start mass-producing the hypersonic ballistic missile that it fired at Ukraine Thursday.

Russian President Vladimir Putin said his forces may use a new missile again after targeting Ukraine in retaliation for Kyiv’s use of American and British-made weapons on Russian territory this week.

The Kremlin fired a new intermediate-range ballistic missile at Ukraine on Thursday in response to Kyiv's use this week of American and British missiles capable of striking deeper into Russia, President Vladimir Putin said.