Nigeria World Cup viewers hit by deadly bomb blast Published duration 18 June 2014

image copyright Reuters image caption Yobe state has been under a state of emergency since May 2013

At least 21 people have been killed in a bomb blast in northern Nigeria as they were watching a World Cup match, a hospital source has told the BBC.

Witnesses in Damaturu, in Yobe state, say a suicide bomber in a tricycle taxi detonated explosives as people watched Brazil's match against Mexico on TV.

At least 27 people are said to have been seriously injured.

Public screenings of the World Cup in some parts of Nigeria have been banned because of threats by Boko Haram.

Three states, including Yobe, are under a government-imposed state of emergency following years of attacks.

No group has saidit was behind the latest blast.

image copyright AFP image caption Outdoor public viewing centres for watching football are popular across Nigeria

At the scene: Abdullahi Kaura Abubakar, Kaduna, northern Nigeria

Kaduna's football fans have mixed views. While some say they will now stay away from viewing centres because they are scared, others say they will still go, but with caution.

Many say they enjoy going to the centres too much to stop. As well as watching the games with their friends, they enjoy arguing, analyzing and betting on the matches. Others say that after the bombing, they will stay away as they do not want to lose their lives for the sake of watching a football game.

Lynda, a student and a football fan says: "During the Champions League final between Atletico