Plagued by persistent violence, Afghanistan has again been revealed as the most dangerous country for aid workers, according to a human rights report.

Humanitarian Outcomes, a research and policy organization, said that more than one-quarter of attacks on aid staff happened in the war-torn nation in 2014.

Down 30 percent from the previous year’s figures, 329 humanitarian workers across 27 countries were assaulted, 120 of whom were killed and 121 were kidnapped, according the the Aid Worker Security Report 2015.

RELATED: World Reacts to IS Execution of British Aid Worker

"The number of casualties being lower in 2014 than a year before says more about the spike in 2013 than about the conditions for aid workers getting any safer," Abby Stoddard, one of the report's authors, told Reuters. "The number of attacks in 2014 is still higher than in any previous year. Aid agencies have not become more risk averse but are changing their mode of operating."

Central African Republic has caused concern after debuting on the list, with 14 major attacks on aid workers. The country’s civil conflict, which broke out in 2012, surged at the beginning of last year.

Due to escalating violence in Afghanistan this year, it looks as though the country will remain a perilous place for aid workers. In April, five workers employed by Save the Children were abducted and murdered.

WATCH: Llama Time - DISASTER RELIEF