Brooklyn activist Clive Campbell and Da Black Defense League are filing a $5 billion lawsuit against Jay-Z, real estate developer Bruce Ratner and Barclays Bank that is seeking money for slavery reparations.

Jay Z, Ratner and several other partners joined forces to purchase the NBA's New Jersey Nets franchise in 2004 for $300 million.

They plan to move the Nets to Brooklyn and Barclays Bank reportedly shelled out $400 million to build an arena for the team and own the arena’s naming rights for 20 years,.

According to The New York Observer, Campbell claims that Barclays Bank was founded by profits from the slave trade and that Mr. Ratner and Jay-Z worked “in concert” with Barclays, and “profited from the African Slave Trade and continue to profit from these gains, through a conspiracy dating back hundreds of years and continue to date to oppress Black people, enslave them, unlawfully deport them to all corners of the Earth.”

Campbell will be filing the suit with the Black Defense League today (February 25).

Barclays has denied having ties to the slave trade and Forest City Ratner, Mr. Ratner's development group, declined to comment.