NIAMEY (AFP) - At least 36 mourners at a funeral ceremony were killed and 27 wounded when an unidentified plane bombarded a village in Niger near the Nigerian border, the army said Wednesday.
The strike on Tuesday came as Niger takes part in a regional offensive against Nigeria-based Boko Haram fighters, who have extended their brutal six-year insurgency to Niger, Chad and Cameroon.
A Niger army report obtained by AFP that gave the death toll said the plane's "origins remained undetermined."
"The victims were residents attending a mourning ceremony for a prefecture official," said a humanitarian source, who added that the attack was near the mosque in Abadam.
Nigeria denied all responsibility for the air strike despite a claim it was involved.
Meanwhile, seven villagers in far north Cameroon were killed Tuesday when battling Boko Haram fighters who stole 70 cows and torched houses in Gaboua.
Nine Islamist militants also died in the clashes against the locals, armed with clubs, machetes and bows and arrows.
A spokesman for Nigeria's air force, Air Commodore Dele Alonge, denied all responsibilty for the 36 deaths in Abadam.
"It's not to my knowledge and there has not been any report from our people of such an incident," he said.
However, at least one local leader blamed Nigeria.
"At first we thought it was a blunder by Chad or Niger's army, but now we suspect the Nigerian army is responsible," said an elected leader from Bosso in Niger, which is about 10km from Abadam.
The leader said a similar air strike several days ago on the nearby village of Gamgara killed one person.