Russian President Vladimir Putin will on Friday begin formally annexing 15% of Ukrainian territory, presiding at a ceremony in the Kremlin to declare four Ukrainian regions part of Russia.

Putin's spokesman Dmitry Peskov said the ceremony would take place at 3 p.m. (1200 GMT) on Friday in the St George's (Georgievsky) Hall of the Grand Kremlin Palace to sign "agreements on the accession of new territories into the Russian Federation".

Agreements will be signed "with all four territories that held referendums and made corresponding requests to the Russian side", Peskov said.

Ukraine and the West have rejected the hastily arranged votes, held in the occupied Donetsk, Luhansk, Zaporizhzhia and Kherson regions seven months after Russia's invasion, as illegitimate shams conducted at gunpoint.... Read More: Reuters