Liberia has closed numerous border crossings in a bid to contain the Ebola virus that has killed 660 people across west Africa.
The measures come as a second American citizen working in the country contracted the deadly virus, which has spread across Guinea, Liberia, Sierra Leone and Nigeria.
"All borders of Liberia will be closed with the exception of major entry points," Liberian president Ellen Johnson Sirleaf said.
"At these entry points, preventive and testing centres will be established, and stringent preventive measures to be announced will be scrupulously adhered to."
As it reaches seven months since the Ebola outbreak started we take a look at the timeline of events leading up to the spread of the virus.
More than 100 British personnel are arriving in Sierra Leone to combat the Ebola outbreak in West Africa. Here's what else the UK is doing.
A man has been filmed helping an Ebola patient onto a plane without wearing any protective equipment.