President Biden has given Ukraine permission to defensively deploy U.S. weapons to strike targets inside Russia, close to Ukraine’s northeast Kharkiv region. The change in policy was widely reported Thursday, though the White House has yet to officially comment on the matter. The new directive does not apply to long-range missile strikes inside Russia. Earlier today, Germany confirmed it was allowing Ukraine to use German-supplied weapons in Russia’s border area with Ukraine. Vladimir Putin this week warned of “serious consequences” if weapons provided by NATO members were used inside Russia.

This comes as Ukrainian authorities announced at least four people were killed, and another 16 injured, in an overnight Russian attack in a residential area of Kharkiv.