HERAT - A roadside bomb killed eight members of an Afghan family, including children, just hours after the Taliban claimed their upcoming spring offensive would “safeguard” civilian lives, officials said Thursday. The blast ripped through the family’s vehicle in Khash Rod district of southwestern Nimroz province late Wednesday as they were travelling home. “The roadside bomb hit a vehicle carrying a family, killing two men, one woman and four children,” Ahmad Arab, spokesman for the provincial authorities, told AFP.