07/30/2014 08:45 EDT | Updated 09/29/2014 05:59 EDT

UK gov't holds crisis meeting on Ebola virus and warns of threat; no cases in Britain

LONDON - British officials have held a crisis meeting and warned of a potentially serious threat if the deadly Ebola virus spreads further.

Foreign Secretary Philip Hammond Wednesday said there are no known cases in Britain, but that the incurable disease is viewed by the government as a "very serious threat."

He chaired the government's crisis session to discuss possible measures to cope with the disease.

Health officials are being warned to be vigilant for symptoms of the virus. There are concerns it may spread from West Africa, where the current outbreak has already killed hundreds of people.

British public health official Dr. Brian McCloskey said the risk to British travellers and to Britons working in the countries affected is "very low" but that the outbreak isn't under control.