A public memorial service is under way in Kenya's capital, Nairobi, honouring six of the people killed in last week's terror attack on the Dusit complex.

Jeremiah Mbaria, Kelvin Gitonga, Ashford Kuria, Wilfred Kareithi, John Ndiritu and Denis Mwaniki all worked for Cellulant, a financial technology firm described as one of Africa's most innovative start-ups in that sector.

Cellulant says the six men performed "selfless acts of leadership and bravery to save the lives of their colleagues".

The company have asked the congregation not to take photos or videos but is live-streaming the service via Facebook.

CEO Ken Njeroge has called it a "painful" time.