Nathan Gill, the former leader of Reform UK in Wales was sentence to 10 and a half year in prison after admitting he accepted bribes.
While serving as a Member of the European Parliament (MEP), Gill made statements supporting Russia and received about £40,000 in total.
Gill pleaded guilty to eight counts of bribery between December 6, 2018 and July 18, 2019.
He was a prominent member of the UKIP and Brexit Party groups led by Nigel Farage.
Gill delivered pro-Russian statements both in European Parliament and on 112 Ukraine, a pro-Russian TV channel connected to Viktor Medvedchuk, an ally of Vladimir Putin.
The Old Bailey court, Judge Mrs Justice Cheema-Grubb said Gill misused his political position and damaged the public’s trust in democracy.
She added that Oleg Voloshyn was working on behalf of his close friend, Vladimir Putin and Ukrainian oligarch Medvedchuk who supplied both the orders and the money involved.
The Met Police said investigations into "whether any other individuals have committed offences" are continuing, as per BBC.
He also took bribes to persuade other Members of the European Parliament to make similar statements.
Investigators were surprised when Gill suddenly pleaded guilty, though he has not revealed the motive behind his actions.
