Is it permissible to kill flies and insects with an electric fly swatter that electrocutes the pests?

Fatwa, posted 4.22.2010, from South Africa
Religious Authority: 
Ebrahim Desai
Fatwa Question or Essay Title: 
Is it permissible to kill flies and insects with an electric fly swatter that electrocutes the pests?

In principle it is not permissible to torture or kill any creation of Allah's using fire. It is exclusively the right of Allah to punish with fire. It is permissible to kill flies, mosquitoes, etc., using an electric light or bat.