Tackling insecurity 'top priority' for Nigeria's new president

Long-time political kingmaker Bola Tinubu was sworn in as president of Nigeria on Monday, succeeding Muhammadu Buhari, a former general who stepped down after two terms in office. The 71-year-old southerner took over from a 80-year-old northerner as Africa's most populous nation faces a sea of economic troubles and security challenges. FRANCE 24's team on the ground reports.