QUETTA - An alleged suicide bomber was killed in an explosion Tuesday near Quetta city. According to police, the explosion occurred in Killi Khanu area of Kuchlak Town, some 25 kilometres north of Quetta city. After preliminary investigation, police said a person was travelling in a taxi from Kuchlak to Chaman. Police said taxi driver, Sharifuddin, had to pick up some passengers from Killi Khanu. He was already having a passenger in his vehicle. When he reached Killi Khanu, he requested the man to sit on the front seat because a lady was also amongst the passengers he had to pick up.