"If deliberate, this attack may amount to a war crime," Ban said in a statement from his spokesman.
The Syrian Observatory for Human Rights said "warplanes -- either Russia or Syrian -- carried out six strikes" yesterday in a village in rebel-held Idlib province, including on a school complex.
UNICEF said the school compound in the village of Hass was "repeatedly attacked," leaving 22 children and six teachers dead.
Ban called for an "immediate and impartial investigation" and raised concerns about a series of attacks on civilian targets in Syria, now in its sixth year of war.
"They must be proved wrong."
Russia, which is backing Syria in its military operations against opposition rebels and jihadists, said it had nothing to do with the air strikes and also demanded an immediate investigation.
Former British prime minister Gordon Brown, who is the UN envoy for global education, earlier called on the Security Council to ask the ICC prosecutor to open up an investigation of the attack, describing it as a war crime.
Disclaimer: No Business Standard Journalist was involved in creation of this content
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
