The Afghan intelligence service says four people have been arrested in connection with a suicide bombing that killed the country"s deputy intelligence chief and 22 other people. The intelligence service said in a statement released Tuesday that all four had confessed to organizing the Sept. 2 bombing, which occurred as Afghan officials were leaving a mosque in Laghman province in eastern Afghanistan. The bomber approached the crowd on foot and detonated an explosive belt, killing Abdullah Laghmani, who was deputy chief of Afghanistan"s National Directorate for Security, according to the Associated Press.