Sporadic shooting rang out overnight in the central Nigerian city of Jos and witnesses said at least one person was killed by soldiers enforcing a curfew days after attacks on three nearby Christian villages.
U.S.-based Human Rights Watch on Tuesday urged Nigeria to prosecute those behind what it called a massacre of at least 200 Christian villagers and end a cycle of impunity which has allowed instability to persist.
The foiled Christmas Day bomb attack on a U.S. airliner has put further pressure on ailing Nigerian President Umaru Yar'Adua to either confirm he is fit to govern or hand over to his deputy.
