text: Iraq Forces Advance on Najaf Shrine, Battle Rages  NAJAF, Iraq (Reuters) - Iraqi security forces tightened  their grip on the streets around a sacred shrine in Najaf  Tuesday after the government warned Shi'ite rebels inside they  would be killed if they did not surrender.
inputs: Iraq Forces Advance on Najaf Shrine, Battle Rages  NAJAF, Iraq (Reuters) - Iraqi security forces tightened  their grip on the streets around a sacred shrine in Najaf  Tuesday after the government warned Shi'ite rebels inside they  would be killed if they did not surrender.