**Some 500 people were killed in Sunday’s revenge attack after religious clashes near the Nigerian city of Jos, local officials say.**The figure had previously been put at about 100 - it is always difficult to get accurate figures for such clashes in Nigeria.
Officials say two mainly Christian villages near Jos were attacked by people with machetes.
There is a long history of local tension between Muslims and Christians.
The attacks are said to in revenge for the killing of several hundred people in January.