Jean-Paul Tunezerwe, The victim, was a 25-year-old resident of Ndera and a regular customer at a hair salon where the incident took place.

"When the barber requested him (Tunezerwe) to sit for his haircut, the victim said that he was carrying something in his pocket which he tried to show the barber," Police said in a statement.

"Inside his pocket was a smoke-emitting grenade. Seeing the grenade, Niyikiza (barber) immediately told Tunezerwe to get out of the salon and the grenade detonated in the process."

"Preliminary findings have ruled out terrorism as the motive. Detailed investigations have started to ascertain the source of the grenade." Police added

Among the injured were two children aged 8 and 12 who were immediately evacuated to Rwanda Military Hospital for treatment while the dead body was taken to Kacyiru District Hospital for postmortem.

Rwanda National Police has said that a grenade explosion yesterday in Ndera sector Gisabo district left one person dead and injured.