The Islamist group Al Shabaab says its gunmen were behind an overnight attack that killed at least 14 people, mostly quarry workers, at a residential complex in northeast Kenya.<br /><br /> They said they targeted Christians – many shot dead as they slept.<br /><br /> The raid was at the Kenyan border with Somalia, in Mandera, where 36 quarry workers were murdered in December.<br /><br /> Al Shabaab has vowed to pursue its campaign against Kenya until the country withdraws its troops from an African Union force fighting the militants in their home base of Somalia.<br /><br /> “Once again, this attack is a clear reminder that al Shabaab and its collaborators are determined to disrupt and subvert our way of life,”.<br />Kenyan Interior Minister Joseph Nkaissery told reporters.<br /><br /> “I take this opportunity to reiterate that Kenya shall never be cowed by these evil murderers.”<br /><br /> He said security reacted swiftly to prevent a higher death toll after the group opened their attack by blowing up an entrance gate to the residential area.<br /><br /> T
