Abdalla Dahir and Feisal Ahmed were so close that they were almost always together. “If you couldn’t reach Abdalla, you called Feisal, and if you couldn’t reach Feisal, you called Abdalla,” said a mutual friend, Abdulahi Mohammed. “They even used to joke that they will one day die together.”

That sentiment became a prophecy on Tuesday. The two men, who worked for a London-based development company with offices in Nairobi, Kenya, were killed while having lunch on a restaurant terrace in a luxury hotel and office complex stormed by Shabab militants.

Kenya’s police chief, Joseph Boinnet, said Wednesday night that the fatalities had risen to 21 from 14, with six additional bodies retrieved from the attack site and the death of a police officer from injuries. The victims included an American and a British national.