"Some witnesses said the gunmen had told Muslims to leave and said non-Muslims would be targeted."

BBC reports on the massacre in the upscale shopping mall in Nairobi, Kenya:

"They came and said: 'If you are Muslim, stand up. We've come to rescue you," said Elijah Lamau.

He said the Muslims left with their hands up, and then the gunmen shot two people.

The correspondent in Nairobi for the Economist, Daniel Howden told the BBC he spoke to one man with a Christian first name but a Muslim-sounding surname who managed to escape the attackers by putting his thumb over his first name on his ID.