Millions of Euros Disappear From Gaddafi Account in Belgium - Reports

The Swiss!*
From Sputnik:

Libya has been in turmoil since the ouster of its long-time leader Muammar Gaddafi in 2011. Its eastern part is ruled by the country's parliament, supported by the Libyan National Army, while the UN-backed Government of National Accord headed by Prime Minister Fayez Sarraj operates in the country's west.

The UN is investigating the alleged embezzlement of up to five billion euros (5.6 billion dollars) that disappeared from accounts owned by former Libyan leader Muammar Gaddafi, according to Belgian MP Georges Gilkinet.

"UN documents confirm that Belgium failed to comply with a UN resolution on freezing Libyan assets," he told the Belgian news network RTBF.

He said that thus far, he had only received fragmentary information from Belgian authorities and that it is necessary "to clarify the situation, which may lead to a big scandal, because hundreds of millions of euros were sent to unknown individuals in Libya who were not known."

RTBF also cited a source as saying on condition of anonymity that over the past seven years, this hefty sum has allegedly been used to "finance a civil war which led to a major migration crisis."

A special UN report, in turn, suggested that the money was received by the Libyan investment authorities, whose complex structure makes it almost impossible to find out what these funds were allocated for....MORE

This could end up being a lot of money.
At one time Gaddafi was reputed to have a $200 billion net worth. So even just the interest and dividends would add up.

*The reference to the Swiss! was because:

a) They're Swiss, and transnational money seems to still be flowing there, and
b)  That time it looked like Gaddafi was going to invade, up the Rhône and on to Geneva

September 2009 
Qaddafi proposes abolishing Switzerland
February 2010 
"Qaddafi declares jihad against Switzerland"
May 2010 
"Qaddafi accuses Switzerland of mass murder"

March 2011 
Switzerland Seizes Opportunity, Declares War on Libya
March 2011 
"New Qaddafi media strategy: Blame Denmark"
January 2012 
"Switzerland's long Libyan nightmare is finally over"

The bellicosity was the result of violent actions on the part of Gaddafi's son,
Hannibal.