A policeman was killed and four security personnel injured when a bomb exploded near Paithom Hotel in the Gali Bagh area of Swat district here on Thursday, police said. Swat District Police Officer Muhammad Iqbal confirmed the incident, saying that a patrol unit had reached the hotel at around 8.15am, when a remote-controlled bomb went off, injuring five people. The injured, three policemen and two security guards at the hotel, were rushed to the Saidu teaching hospital, where Head Constable Fazal Nawab succumbed to his injuries. The condition of the other two policemen was stated to be critical and one of them, Bacha Khan, was later shifted to a hospital in Peshawar. No one immediately claimed responsibility for the attack in Swat.