At least 18 people have been killed and 48 seriously injured in three suicide attacks in north-eastern Nigeria. According to the regional State Emergency Management Agency (SEMA), all three attacks occurred in the city of Gwoza. There was an explosion in the middle of a wedding ceremony at around 3 pm (1400 GMT) on Saturday, SEMA Director General Barkindo Muhammad Saidu told dpa. A second explosion hit the city’s hospital, where some of those injured in the wedding ceremony had been taken. The third attack took place at a Muslim funeral ceremony. According to the Nigerian police, the attacks w…