Reports in Nigeria say as many as 60 people may have been killed after a raid on a village in the north-east by suspected Boko Haram militants.
The attack on Kukuwa in Yobe state happened last Thursday but details have only just emerged from survivors. Some of the villagers are said to have drowned while fleeing gunmen.
A military spokesman said that following air surveillance and armed reconnaissance, the reports of a massacre and drownings could not be substantiated.
However, eyewitnesses said that dozens of militants arrived in the village on motorcycles and began shooting the residents.