LAGOS, June 3 (Xinhua) -- At least 20 people were injured in an explosion Thurday evening at a a gas refilling shop in Nigeria's north state of Kano, authorities said.
Preliminary investigation shows that the blast, in the Kumbotso local government area, was caused by fire from an exploded cylinder used by a man frying and selling fish near the gas shop, said Saminu Yusif, spokesperson for the Kano State Fire Service.
Those injured are receiving treatment in hospitals, Yusif told Xinhua on the phone.
Several shops near the gas refilling shop were burnt down in the fire, he said. ■