Somali militants claim responsibility for attack in Kenya capital -spokesman

Somali Islamist militant group al Shabaab have claimed responsibility for an attack in the Kenya capital of Nairobi, their spokesman told Reuters.

"We are behind the attack in Nairobi. The operation is going on. We shall give details later," said Abdiasis Abu Musab, al Shabaab's military operations spokesman.

(reporting by Feisal Omar; Writing by Katharine Houreld; Editing by Alison Williams)