“We are not actually involved in such low-scale attacks. Al-Shabaab has nothing to do with the hand grenade attacks that hit Nairobi,” said Sheik Mohamed Ibrahim, a senior Shabaab official.
Kenya’s Internal Security Minister on Sunday said they suspected the Shabaab was responsible for the attack in which four grenades were thrown at a busy bus terminus on Saturday from a car driving past.
Al-Shabaab has threatened Kenya since it sent its troops into Somalia in mid-October to dislodge the Islamic insurgents controlling swathes of the south, which it accused of a series of kidnappings and attacks on its territory.
The attack was the deadliest in Nairobi since one in June 2010, not attributed to Islamists, during a public meeting against the adoption of a new constitution, in which the death toll was also six.
Police said Monday they had arrested four suspects.
Despite the denial the Shabaab official renewed the Al-Qaeda-linked insurgents’ threats to launch more attacks.
“There will be a day we will hit their cities if they continue with their aggression,” Ibrahim told AFP.