1 of 7 At least 76 people were killed in a raid in north-eastern Kenya on Tuesday. The Gabras and the Boranas groups have long clashed over water and cattle but even these police officers were shocked by the latest attack.
2 of 7 At least 22 of the dead were children - some slaughtered with machetes and guns in a school. Mamo Duba, 9, lost his mother, father and two siblings in the killings.
3 of 7 Some of the victims were air-lifted to the capital, Nairobi, 560km away...
4 of 7 ... The nearest hospital is 130km away and was overwhelmed with the casualties. This woman is having a bullet removed from her face. (Pic: The Standard)
5 of 7 Soldiers have been sent to the area to restore calm...
6 of 7 ... But some Gabras have reportedly already carried out a revenge attack on a nearby Borana village.
7 of 7 The massacre took place in one of Kenya's most remote areas, where most people are nomads, who live from their animals.