Kenyan police have warned the public not to panic after bomb experts found an explosive in the Dusit office park which terrorists stormed in. Picture: Security Camera Footage via AP

Johannesburg - Kenyan police have warned the public not to panic after bomb experts on Thursday found an explosive in the Dusit office park which terrorists stormed on Tuesday in an attack that left 21 people dead, the Daily Nation reported.

Through their Twitter handle, the National Police Service (NPS) urged the public not to be alarmed if they hear a blast when their officers detonate the device.

"We wish to inform the general public that bomb experts from the @DCI_Kenya [Directorate of Criminal Investigations] are still combing the scene of the Dusit incident for any remaining explosives or booby traps that could have been left by the slain attackers," said NPS.

African News Agency (ANA)