Boko Haram Islamists opened fire Friday on security operatives conducting an operation near a legislative building in Nigeria\'s capital Abuja, sparking a gunfight that injured several people, the intelligence branch said. \"In the early hours of (Friday)... a security team went for an operation behind the Apo legislative quarters... they came under heavy gunfire attack by ... Boko Haram elements,\" leading to a shootout which injured \"some people\", Marilyn Ogar, spokeswoman for the Department of State Services, said in a statement.