The head of the Kenyan intelligence service, which has been criticised in recent months for failing to stop a spate of attacks blamed on Islamist militants from neighbouring Somalia, resigned on Thursday, the president's spokesman said.
The east African nation has suffered a string of gun and grenade attacks in the past several months, including the assault on the upscale Westgate shopping mall in the capital Nairobi last September, in which at least 67 people were killed.