11 dead in retaliatory tribal attack in Kenya's Tana River Delta KIBUSU, Kenya, Jan. 10 (UPI) -- Tribal attacks along Kenya's coastal Tana River Delta Thursday resulted in the deaths of at least 11 people, including children, police said. The attacks at Kibusu Village were allegedly carried out by the Orma community in retaliation for a deadly attack Wednesday in Nduru Village by the Pokomo community, the Kenyan Broadcasting Corp. reported. A group of alleged Pokomo raiders killed at least 10 Ormas Wednesday, including children, the Daily Nation reported. Some Nduru Village residents said the attack was sudden and unexpected. They just emerged from all sides. They came to my house and killed my six-month pregnant wife. They injured my three year-old son," said Yakub Dube while tending to his son's injuries at the Malindi District Hospital. Thursday's attack at Kibusu Village, which killed three women, three men and five children, was retaliatory, police said. At least 19 houses were destroyed by fire, the Kenyan Broadcasting Corp. reported. More than 100 people in the region have died in recent months, with rivalry between the two communities intensifying, the BBC said. In August, the two communities clashed in a dispute over cattle belonging to Orma farmers grazing on land people in Pokomo claim is theirs.