On Tuesday 17th June a suicide bomber in a tricycle taxi detonated explosives as people watched Brazil's match against Mexico in Yobe State. A hospital worker said truckloads of injured young men and children were being treated in overcrowded wards. The injuries were ‘horrific’ and more than 20 were seriously injured (Nigeria’s Daily Post newspaper reported scores feared killed). Boko Haram describes football as un-Islamic. Open-air viewing centres where fans watch live football are popular throughout Nigeria. However, authorities warned some states to avoid public World Cup screenings, fearing militant attacks. The state of Adamawa ordered all venues planning to show live football coverage to close, after receiving intelligence of planned bomb attacks. On 1st June 14 people were killed after a bomb blast at a bar screening a televised football match.