Mauritanians are voting for the first time since the country gained independence from France in 1960.
The 62-year-old is standing down after serving the maximum two five-year elected terms.
However the status quo is likely to prevail when a new leader is elected.
Abdel Aziz has expressed his support for Mohamed Ould Ghazouani, who is a former general and defense minister.
Trump says he will meet with Venezuela's Machado next week
US President Donald Trump has indicated on Thursday that Venezuelan opposition leader Maria Corina Machado was coming to Washington next week.
3 missing as bushfires destroy homes in Australia's southeast
Three people have been unaccounted for as out-of-control bushfires rage in the Australian state of Victoria, destroying homes and burning through vast swathes of bushland, authorities said on Friday.
Five Spanish citizens freed in Venezuela prisoner release
Spanish authorities have announced on Thursday that Venezuela released prominent Venezuelan-Spanish rights activist Rocio San Miguel and four other Spaniards from prison, but local rights groups said Venezuelan prisoners had not yet been freed as promised.
US immigration agent fatally shoots woman in Minneapolis
A US immigration agent has shot and killed a 37-year-old woman in her car in Minneapolis on Wednesday during an immigration enforcement surge, according to local and federal officials, the latest violence in President Donald Trump's nationwide crackdown on migrants.
Israel strikes Gaza launch site after failed rocket fire
Israel's military said on Thursday it had carried out a targeted strike on a rocket launch site near Gaza City after identifying a failed launch, as questions mount over when the next phase of the Gaza ceasefire will begin.
The legendary Craig David joins The Kris Fade Show for an unforgettable chat!
One of the most talked about comedians in the world takes over The Kris Fade Show. Watch the full interview here...
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