Nigeria Bombings

People gather at the site of a bomb explosion at a road in Kaduna, Nigeria on Sunday, April 8, 2012. An explosion Kaduna in central Nigeria that has seen hundreds killed in religious and ethnic violence in recent years, causing unknown injuries as diplomats had warned of possible terrorist attacks over the Easter holiday, police said.(AP Photos/Emma Kayode)

A body is seen at the site of a bomb explosion at a road in Kaduna, Nigeria on Sunday, April 8, 2012. An explosion struck the city of Kaduna in central Nigeria on Sunday that has seen hundreds killed in religious and ethnic violence in recent years, causing unknown injuries as diplomats had warned of possible terrorist attacks over the Easter holiday, police said.(AP Photos/Emma Kayode)

A man stand in front of damaged house following a bomb explosion at a road in Kaduna, Nigeria on Sunday, April 8, 2012. An explosion struck Kaduna that has seen hundreds killed in religious and ethnic violence in recent years, causing unknown injuries as diplomats had warned of possible terrorist attacks over the Easter holiday, police said.(AP Photos/Emma Kayode)

People gather at the site of a bomb explosion at a road in Kaduna, Nigeria on Sunday, April 8, 2012. An explosion struck Kaduna that has seen hundreds killed in religious and ethnic violence in recent years, causing unknown injuries as diplomats had warned of possible terrorist attacks over the Easter holiday, police said.(AP Photos/Emma Kayode)

Policemen stand by a damaged car following a bomb explosion at a road site in Kaduna, Nigeria on Sunday, April 8, 2012. An explosion struck Kaduna in central Nigeria that has seen hundreds killed in religious and ethnic violence in recent years, causing unknown injuries as diplomats had warned of possible terrorist attacks over the Easter holiday, police said.(AP Photos/Emma Kayode)

A man walk past a damaged car at the site of a bomb explosion at a road in Kaduna, Nigeria on Sunday, April 8, 2012. An explosion struck Kaduna, that has seen hundreds killed in religious and ethnic violence in recent years, causing unknown injuries as diplomats had warned of possible terrorist attacks over the Easter holiday, police said.(AP Photos/Emma Kayode)

People gather at the site of a bomb explosion at a road in Kaduna, Nigeria on Sunday, April 8, 2012. An explosion struck Sunday in Kaduna central Nigeria that has seen hundreds killed in religious and ethnic violence in recent years, causing unknown injuries as diplomats had warned of possible terrorist attacks over the Easter holiday, police said.(AP Photos/Emma Kayode)