Mauritania
The former Mauritanian President Mohamed Ould Abdel Aziz has been released by police after a week-long questioning over his suspected embezzlement.
He has not been charged but his passport has been taken, his lawyer said.
He has also been banned from leaving the capital, Nouakchott.
Aziz, who is 63, was arrested last week on charges of corruption.
He seized power in a coup and served two terms as president from 2008 to 2019.
Parliament started investigating his rule shortly after he left power last year.
His handling of some foreign companies as well as oil revenue and state property are being questioned.
Aziz has refused to speak to the police citing his constiutional immunity.
Several former officials have also been suspected of corruption under his rule.
00:53
Shipping data shows Indian diesel exports to West Africa at record high
01:05
Corruption trial of Nigeria's ex-oil minister and former OPEC chief opens in London
00:57
Ivory Coast: Robert Beugré Mambé reappointed as prime minister
Go to video
US firm sues DR Congo over alleged bribery scheme
00:49
Nigeria: Ex-justice minister Abubakar Malami granted bail in money laundering case
00:02
Ghana's ex-finance minister Ken Ofori-Atta detained by US immigration authorities