UN secretary-general, Ban Ki-moon begins a visit to Nigeria at the weekend to commemorate a deadly attack on the global body by Boko Haram militants and meet the country’s new leader.

The secretary-general arrives in Abuja on Sunday for talks with President Muhammadu Buhari, who came to power on May 29, Nigerian and UN officials said Friday.

Ban “is expected to discuss development, climate change, human rights and countering violent extremism while he is in Nigeria, said his spokeswoman Eri Kaneko.

The UN chief is also due to dine with captains of industry and the west African nation’s state governors during the two-day trip, a statement from the Nigerian foreign ministry said.

Ban will visit members of “Bring Back Our Girls”, the campaign said on its website, although the announcement was not immediately confirmed by the government or UN.

The group will mark 500 days next week since the abduction of more than 200 schoolgirls from the northeastern village of Chibok by Boko Haram