Villagers say suspected extremists have attacked several farming settlements in Nigeria's northeast Borno state this week, killing 18 people and razing homes. Wadai Mutah said Friday 10 people were killed and several injured on Tuesday before attackers set the whole village on fire near the state capital, Maiduguri, AP reported. Mutah said eight people were killed in a neighboring village on Wednesday. He said Mude and Kwaljiri villages were destroyed, but residents escaped unharmed.