Swedish scientist Ake Sellstrom and Angela Kane, the UN high representative for disarmament, arrived at a hotel in the Syrian capital.
The pair are to hold talks with senior government officials during their two-day visit, Damascus-based UN media and communications analyst Khaled Al Masri told AFP.
Top of the agenda will be access to areas of the country where chemical weapons are alleged to have been used so that they can pursue their investigations.
A source close to the UN delegation told AFP on condition of anonymity that the experts were likely to meet Foreign Minister Walid Muallem later today.
On June 11, the United Nations accepted an invitation from the Syrian government for a visit by the two officials for talks on chemical weapons.
UN spokesman Martin Nesirsky gave a limited brief for the visit at the time.
The two officials accepted the invitation "with a view to completing the consultations on the modalities of cooperation required for the proper, safe and efficient conduct of the UN mission to investigate allegations of the use of chemical weapons in Syria," he said.
Longstanding Assad ally Russia has accused the rebels of using chemical weapons.
Damascus has insisted any investigation should focus on the use of chemical weapons in Khan al-Assal in the northern province of Aleppo in March, which it blamed on the rebels.
The town was captured by the rebels from the army on Monday, in what diplomats at the United Nations said was a blow to the mission's hopes of gaining access.
The United Nations has received 13 allegations of the use of chemical weapons in Syria.
UN chief Ban Ki-moon is "gravely concerned" by the allegations, UN envoy on the Middle East peace process Robert Serry told the Security Council yesterday.
The United States has previously said that the use of chemical weapons in the Syrian conflict would constitute a "red line" that would warrant greater involvement.
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
