A previously unknown jihadist group has said it killed six Sudanese intelligence officers during a shootout on Tuesday.<br />''  <br />''The government had blamed the attack on militants from the Islamic State (IS) group. But a jihadist group calling itself the Movement for Preaching and Combat said it had killed the Sudanese officers and denied any links with IS.<br />''  <br />''The authorities admitted losing five officers in Tuesday's raid and said 11 militants were arrested.<br />''<span style="color: #222222;">        <br />''Last week the Sudanese military said it had foiled a coup attempt. </span><br />