1.   A campaign to exterminate mosquitos has already been launched in Khartoum and its suburbs.

2.   Some of the injuries were aggravated by insecticides sprayed on the river to exterminate mosquitoes before the games, Israel TV said.

3.   The condition of the injured was aggravated by poisonous insecticides sprayed on the river to exterminate mosquitoes before the games, Israel TV said.

4.   The injuries were aggravated by insecticides sprayed on the river to exterminate mosquitoes, Israel TV said.