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."
A Swansea doctor who took leave to treat Ebola patients in Africa, is back on the wards after three weeks in isolation.
The first British case of Ebola in the outbreak in West Africa has been confirmed. So how would repatriation work are what are the risks?
In a Facebook Q&A on the Ebola virus for ITV News, an expert discussed risks, potential vaccines and what would happen if it came to the UK.