An outbreak of Ebola, which has left more than 660 people dead across west Africa, has now spread to Nigeria.
A Liberian man vomited on board an aeroplane bound for Nigeria and later died upon arrival in the country.
The 40-year-old had recently lost his sister to the disease, reports suggested.
Nigerian health officials said all ports of entry into Nigeria had been placed on "red alert".
The disease has now infected at least 1,093 people in Sierra Leone, Liberia, Guinea, and now Nigeria.
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.