Bombing At Nigeria Football Pitch 'Kills 40'

The explosion in the town of Mubi, Adamawa state, appeared to target fans walking across the field and heading home after watching a local match, according to AFP.

It was not immediately clear if players were among the casualties, but a police officer and a nurse said it was thought most of the victims were supporters.
Muhammad Hassan said the blast apparently came from within the crowd that was leaving, adding: "Women and children were caught up in the blast."

It is not known who carried out the attack, but according to AP it came less than 48 hours after a letter purportedly from the Boko Haram terrorist group threatened to attack a university in the town.

Mubi was the site of a massacre at a post-secondary technical college carried out by Boko Haram in October 2012.

In April this year, the Islamist group kidnapped more than 200 girls from a school in Chibok, Borno state, which shares a border with Adamawa.

Boko Haram has killed thousands during its battle against the government since 2009.

But the conflict received unprecedented global attention following the schoolgirl kidnapping.

Adamawa is one of three areas in the northeast which has been under a state of emergency for over a year as Nigeria's military tries to crush the extremist uprising.