05/30/2018 05:14 EDT | Updated 05/30/2018 05:34 EDT

Putin Critic Bill Browder Says He Was Arrested On A Russian Warrant, Released Hours Later

Browder tweeted about the saga in Madrid.

CEO of Hermitage Capital Management Bill Browder, a former Moscow financier turned anti-Kremlin activist, walks in the House of Representatives in The Hague on May 23, 2018.

William Browder, CEO of Hermitage Capital and anti-Kremlin activist, said he was arrested on fraud charges in Madrid on Wednesday on a Russian Interpol warrant. He was later released, he added, after Interpol advised Spanish authorities not to honor Russia’s request for the arrest

“Urgent: Just was arrested by Spanish police in Madrid on a Russian Interpol arrest warrant,” he tweeted initially. “Going to the police station right now.”

Interpol said in a statement: “There is not, and never has been, a Red Notice for Mr. Bill Browder.”

Russia has tried on several occasions to issue warrants for Browder in the past to no avail. He’s on the country’s blacklist for exposing a $230 million Kremlin tax fraud scam involving Hermitage Capital Management, the company he started in Moscow in the 1990s.  

Browder turned to activism once Sergei Magnitsky, the lawyer who worked with him to uncover the corruption scandal, was killed in a Russian prison. Browder successfully lobbied Congress to pass the Magnitsky Act in 2012, which imposes sanctions on Russian individuals believed to be implicated in Magnitsky’s murder. Several countries including Canada and the UK have since followed suit, introducing legislation for their own Magnitsky Acts. 

This story has been updated to include information on Browder’s release, and Interpol’s statement.