In Agadez, a regional capital to the southeast of Arlit, a truck carrying armed assailants and explosives detonated in front of the army barracks, Labo said.
"I went back to Agadez and at the time in Agadez to have access to instruments or a place to play, we needed to be part of a political party, " he remembers.
The U.S. military has been considering Agadez as a possible base to fly the surveillance drones it deployed to Niger earlier this year as part of a broader international effort to search for and fight al Qaeda and other Islamist guerrilla fighters in North and West Africa.