An alleged spokesperson for al-Shabab group blamed the Kenyan Government for meddling in Somalia''s affairs, killing and displacing people, and looting their resources, ABC News reports.
The audio was posted on a Twitter account, recently announced to be legitimate by an al-Shabab spokesperson, the report added.
President of Kenya Uhuru Kenyatta announced the end of the Nairobi mall crisis that killed 61 civilians and six security forces soldiers.
According to the report, five of the alleged attackers were killed and 11 others are in custody.
Photos: Salman Khan returns from Jodhpur to Mumbai
Pics: Sidharth Shukla-Rashami Desai's sizzling chemistry at TV show launch
Ooh La Lana! WWE Diva flaunts sexy curves in these 30 pictures
15 'peach' perfect photos of Priyanka Chopra at People's Choice Awards 2017
62 going on 16: These photos of Rekha prove she is 'forever young'