More than 60 per cent of these killings occurred in countries experiencing conflict – the highest percentage in over a decade.

"Reliable information is vital in conflict situations to help affected populations and to enlighten the world," said UNESCO Director-General Audrey Azoulay.

“It is unacceptable that journalists pay with their lives for this work. I call on all States to step up and ensure the protection of media workers, in accordance with international law,” she added.