In a statement to mark International Day of Solidarity with Detained or Missing staff members, OCHA said the war had also hit the Red Cross and Red Crescent as well as international and local NGOs.
"A total of 35 United Nations staff members continue to be detained or missing, the majority of whom are UNRWA staff," it said, referring to the agency dealing with Palestinian refugees.
"Since the start of the crisis in Syria in March 2011, 17 UN staff members, 53 Syrian Arab Red Crescent staff members and volunteers, and eight Palestinian Red Crescent Society staff members and volunteers have lost their lives," the agency said.
"Since 1 January 2015 alone, credible reports indicate that at least 55 NGO staff members have been killed in Syria," OCHA said.
The agency's regional humanitarian coordinator for the Syria conflict, Kevin Kennedy, spoke of a "shocking and bleak reality".
Kennedy urged all the warring sides in Syria to protect humanitarian aid workers and also demanded the release of abducted UN staff.
"We call for the unconditional and immediate release of those colleagues who continue to remain in custody, and for parties to the conflict to reveal the fate of those still missing," he said.
You’ve reached your limit of {{free_limit}} free articles this month.
Subscribe now for unlimited access.
Already subscribed? Log in
Subscribe to read the full story →
Smart Quarterly
₹900
3 Months
₹300/Month
Smart Essential
₹2,700
1 Year
₹225/Month
Super Saver
₹3,900
2 Years
₹162/Month
Renews automatically, cancel anytime
Here’s what’s included in our digital subscription plans
Exclusive premium stories online
Over 30 premium stories daily, handpicked by our editors


Complimentary Access to The New York Times
News, Games, Cooking, Audio, Wirecutter & The Athletic
Business Standard Epaper
Digital replica of our daily newspaper — with options to read, save, and share


Curated Newsletters
Insights on markets, finance, politics, tech, and more delivered to your inbox
Market Analysis & Investment Insights
In-depth market analysis & insights with access to The Smart Investor


Archives
Repository of articles and publications dating back to 1997
Ad-free Reading
Uninterrupted reading experience with no advertisements


Seamless Access Across All Devices
Access Business Standard across devices — mobile, tablet, or PC, via web or app
