Its Sputnik. We saw the same biased pro-Russian election 'observers' in the 2018 Donbas 'vote'.
The overwhelming majority of non-Russian “international observers” have already been involved in various pro-Kremlin efforts that include, but are not limited to: (1) previous participation in politically biased and/or illegitimate electoral monitoring missions in Russia and elsewhere; (2) legitimisation and justification of Russia’s actions directed at undermining Ukraine’s sovereignty, independence and territorial integrity; (3) criticism of the sanctions imposed on Russia in relation to its aggression towards Ukraine; (4) cooperation with the Russian state-controlled instruments of disinformation and propaganda (RT, Sputnik); (5) membership in pro-Kremlin movements, groups and organisations.
https://www.epde.org/en/news/details/foreign-observation-of-the-illegitimate-general-elections-Donetsk-Lugansk.html