An election is tentatively scheduled for August next year to transition the country to civilian rule.
Resolute Mining's British boss Terry Holohan and two other staff were unexpectedly detained 10 days ago.
A victory for the ruling party gives the president a strong mandate to implement promised reforms.
Murray Dowey, from Dunblane, was only 16 when he ended his life last year.
Having built a $20bn oil refinery, Aliko Dangote is now at the heart of a row in the murky industry.
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