|Former vice president Namadi Sambo|
raided on Saturday by the Economic and Financial Crimes Commission (EFCC), a source at the agency said on Tuesday.
Sambo served under the previous president Goodluck Jonathan, and is the latest high-profile official to be investigated for the corruption that flourished under that administration."The office of the former Vice President was raided by officials of the EFCC in relation to an ongoing investigation. In the process, some useful documents were found," said the source at the EFCC.
President Muhammadu Buhari won last year's election on a campaign to crack down on graft and the authorities have not wasted time going after figures previously thought untouchable.
Goodluck's former national security advisor, several former ministers and a former militant leader from the Niger Delta are among those who have been charged with various forms of fraud.
One major EFCC investigation, prompted by a presidential committee report, is focusing on how a sum of $2.1 billion intended for arms procurement was allegedly misused by the Office of the National Security Advisor and other former military officials.
Buhari alleges that mind-boggling sums were plundered from the state coffers, which left the country with only paltry savings after several years of record high oil prices. Oil sales make up the bulk of government revenues for the OPEC member.
The People's Democratic Party, ousted by Buhari after dominating politics since military rule ended in 1999, has accused its successor of conducting a witch hunt.