A former aide to Nicolas Sarkozy has been charged as part of an inquiry into allegations that funds from late Libyan strongman Muammar Gaddafi's government helped finance the French ex-president's 2007 election campaign, a judicial source said on Monday.

Thierry Gaubert, 68, was charged on Friday with taking hundreds of thousands of euros from the Gaddafi government that may have been funneled to Sarkozy's campaign, the source said.

Allegations that the campaign received up to 50 million euros (53.3 million U.S. dollars at current rates) from Libya first emerged during Sarkozy's failed 2012 re-election bid.

Sarkozy helped to remove Gaddafi from power when France and Britain led a NATO-backed military offensive in 2011.

Gaubert worked for Sarkozy when the future president was budget minister in the mid-1990s.

He is suspected of accepting a transfer of 440,000 euros in February 2006 from Rossfield, a company of Franco-Lebanese businessman Ziad Takieddine – another figure who has been charged in the affair.

The investigative news site Mediapart reported in December that Rossfield took six million euros from Libya in 2006.

Gaubert, as well as his ex-wife, are also on trial for tax fraud and money laundering over Rossfield funds allegedly routed through the Bahamas in 2006.

Gaubert has said the money had no links to Libya.

Sarkozy was charged in 2018 with taking bribes, concealing the embezzlement of Libyan public funds and illegal campaign financing.

He denies the allegations, claiming that an explosive Libyan document presented by Mediapart as proof of the corruption is a fake.