US embassy in Nairobi closes after shooting

The US has closed its embassy in Kenya's capital, Nairobi, for the day following Thursday's shooting dead of a man who had stabbed a policeman outside the embassy building:

A statement from the embassy to US citizens in Kenya says:
"Review your personal security plans, remain aware of your surroundings, including local events, and monitor local news stations for updates. Be vigilant and take appropriate steps to enhance your personal security."

The man who was shot dead has been identified as a Kenyan Somali from Wajir and was known to the authorities, according to a police spokesman.

 The US's FBI is investigating the incident.
The AP news agency is reporting that the attacker was shot dead by the policeman who was stabbed.