Nigeria's president said Sunday that ongoing sectarian assaults by a radical Islamist sect are "even worse" than the country's 1960s civil war that saw 1 million people die — suggesting that the enemy this time could be lurking anywhere and everywhere.

President Goodluck Jonathan's comments about the sect known as Boko Haram came as authorities said that suspected gunmen from the group killed at least six people in separate weekend assaults. The sect has killed at least 52 people in recent days after pledging to target Christians living in the multiethnic nation's Muslim north.

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