Virunga National Park in Congo closes to tourists until 2019

Security review to take place after 12 rangers are killed and two Britons are abducted

Africa's oldest national park will close its gates to visitors until 2019 following the death of a ranger and the abduction of two British tourists by local rebels this year.

Virunga National Park in the Democratic Republic of Congo is home to a world-famous population of mountain gorillas but has been hit by rising instability and violence in the country.