British military healthcare worker has been brought back to England for Ebola monitoring after suffering a needle-stick injury while treating a person in Sierra Leone.

Public Health England (PHE) said the individual has been admitted to the Royal Free Hospital in London for assessment and next of kin have been informed.

The individual is likely to have been exposed to the virus but has not been diagnosed with Ebola and does not have symptoms.

"Our thoughts are with this person, who has been courageous in helping those affected in West Africa, and in preventing the wider spread of Ebola," PHE's director for health protection and medical director Professor Paul Cosford said.

"We have strict, well-tested protocols in place for this eventuality and we are confident that all appropriate actions have been taken to support the healthcare worker concerned and to protect the health of other people."