A Spanish priest infected with the Ebola virus in Liberia has arrived in Madrid for treatment.
The heavy security measures suggest Spain is taking the deadly disease very seriously.
75-year-old Miguel Pajares had been working as a missionary in the west African state when he tested positive for Ebola at a hospital in Monrovia.
A nun who is also a Spanish national from Equatorial Guinea will also be repatriated. She has not tested positive but has been exposed to the virus.
Liberia, meanwhile, has declared a state of emergency as authorities struggle to “deal effectively” with the outbreak.
Liberia’s vice president Joseph Boakai Sr. said: “Medical doctors were not getting access to patients, because they been attacked. So we also wanted to restrict the movement, to give the chance, to be able to control the disease.”
Ebola, one of the deadliest diseases known to humans, has killed more than 930 people in West Africa since February and is still spreading fast. Guinea, Sierra Leone and Nigeria are the other countries affected.
There is no known cure and no vaccine to protect against the disease.