The Economic and Funancial Crimes Commission (EFCC) on Saturday in Abuja confirmed the arrest and detention of the former Senate President, Dr Bukola Saraki.
Mr Wilson Uwujaren, the spokesperson of the commission, told the News Agency of Nigeria (NAN) that Saraki was invited for questioning over allegations of corruption and money laundering.
He said the former senate president was currently in the custody of the commission for continuation of interrogation.
According to sources, Saraki is alleged to have hired suspected proxies, who executed contracts for Kwara State under his administration and allegedly made returns to him for many years.
The funds involved are said to run into hundreds of millions in naira and hundreds of thousands in foreign currencies.
Saraki, 58, was Senate President between 2015 and 2019.
He also sat for two terms as Governor of Kwara State from 2003 to 2011.
As Senate President, Saraki spent a considerable time facing charges of corruption and false declaration of assets, although he was eventually acquitted by the Supreme Court in June 2018.
The invitation and detention of Saraki for interrogation is happening days after a former Nasarawa State Gov. Tanko Al-Makura and his wife, Mairo, were invited and interrogated.
The commission had invited Al-Makura and the wife over alleged breach of public trust and misappropriation of billions of naira by his administration.