Large parts of Lebanon, Syria, Israel and Cyprus were shrouded in a thick cloud of dust from the storm that began sweeping into the region yesterday.
The Lebanese health ministry said two women had died at hospitals in the Bekaa Valley region because of the storm.
"The number of cases of choking and shortness of breath caused by the sandstorm has risen to 750," the ministry said.
Police distributed face masks on city streets as authorities warned people suffering from health problems, the elderly and pregnant women to stay indoors.
In the Bekaa region, a woman wrapped her headscarf over her mouth as she walked by a makeshift tent in one camp.
Lebanon's weather service said the storm was expected to abate from tomorrow night.
Mouin Hamzeh, secretary general of Lebanon's governmental National Council for Scientific Research, said satellite images "clearly show that the sandstorm came from northern Iraq in the direction of central and northern Lebanon, north and east Syria, and southern Turkey."
"It usually happens twice or even three times a year in Lebanon but during spring, March and April, and the unusual thing today is the density of the storm," he told AFP.
In the city of Mayadeen in Deir Ezzor, several hospitals were no longer receiving patients suffering respiratory problems after running out of oxygen tanks, said the Syrian Observatory for Human Rights, a monitoring group.
Syria's health minister urged citizens to "avoid prolonged exposure to the outdoors" and said hundreds of people had been treated for cases of asthma and other respiratory problems.
Thick haze was hanging over Jerusalem and much of Israel and the Palestinian Territories, with officials also warning the vulnerable to stay indoors.
The thick cloud also enveloped parts of the eastern Mediterranean island of Cyprus, where residents were told to limit their time outdoors.
Health officials warned that the concentration of dust particles in the air was many times above normal levels.
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
