11.   No perpetrators have been found.

12.   No one was injured, and the perpetrators were not found.

13.   Some residents blamed the misfortune on evil spells, and Mukala, a well-known traditional healer and witch hunter, was summoned to find the perpetrators.

14.   An investigation has been launched to try and find the perpetrators, the agency said.

15.   But despite a search, the US forces failed to find the perpetrators of the attack.

16.   But despite a search, US forces failed to find the perpetrators of the attack.