Some security officials and relief groups are coming under attack as they struggle to reach victims in earthquake-ravaged southwestern Pakistan, demonstrating the volatile conditions in areas hardest hit by Tuesday's magnitude 7.7 temblor.
As rescue efforts continued for a fourth day on Friday, officials reported at least 355 fatalities and more than 600 injuries in the restive Baluchistan province.
But many areas of the country remained inaccessible, raising fears that the death toll could be far higher.