At least 13 soldiers were killed in an ambush on a desert road near Palmyra in eastern Syria on Sunday, government media service Sana reported.
The news agency said 18 soldiers were also wounded in the attack that involved a variety of weapons.
British-based Syrian Observatory for Human Rights blamed ISIS for the attack and reported the death toll as 15.
Despite the fall of the self-proclaimed ISIS "caliphate" in 2019, the group continues to launch deadly attacks from hideouts in the Syrian desert, which extends from the outskirts of the capital Damascus to the Iraqi border.
The Observatory, which relies on a network of sources across the country, said the death toll could rise as most of the wounded soldiers were in a serious condition.
ISIS did not immediately claim responsibility for the attack.
Syrian soldiers are occasionally moved across country by bus, a high-risk mode of transport given the large concentration of men within a single unarmoured vehicle.
In January, ISIS militants fired rockets and an anti-aircraft gun at a bus travelling in the same area, killing five soldiers.
In October, 27 Syrian soldiers were killed when a bus in Damascus was blown up by two bombs. Two similar attacks in central Syria and in Damascus in January killed eight soldiers.
Palmyra, which has a Unesco World Heritage site that includes Roman ruins, was seized by ISIS in 2015 at the height of the country's civil war.
The city was retaken in March 2016 after Russia's intervention to assist President Bashar Al Assad, only to fall back into ISIS hands in December 2016, before again being recaptured by government forces in January 2017.
Six pitfalls to avoid when trading company stocks
Following fashion
Investing is cyclical, buying last year's winners often means holding this year's losers.
Losing your balance
You end up with too much exposure to an individual company or sector that has taken your fancy.
Being over active
If you chop and change your portfolio too often, dealing charges will eat up your gains.
Running your losers
Investors hate admitting mistakes and hold onto bad stocks hoping they will come good.
Selling in a panic
If you sell up when the market drops, you have locked yourself out of the recovery.
Timing the market
Even the best investor in the world cannot consistently call market movements.
if you go
The flights
Flydubai flies to Podgorica or nearby Tivat via Sarajevo from Dh2,155 return including taxes. Turkish Airlines flies from Abu Dhabi and Dubai to Podgorica via Istanbul; alternatively, fly with Flydubai from Dubai to Belgrade and take a short flight with Montenegro Air to Podgorica. Etihad flies from Abu Dhabi to Podgorica via Belgrade. Flights cost from about Dh3,000 return including taxes. There are buses from Podgorica to Plav.
The tour
While you can apply for a permit for the route yourself, it’s best to travel with an agency that will arrange it for you. These include Zbulo in Albania (www.zbulo.org) or Zalaz in Montenegro (www.zalaz.me).
Founders: Abdulmajeed Alsukhan, Turki Bin Zarah and Abdulmohsen Albabtain.
Based: Riyadh
Offices: UAE, Vietnam and Germany
Founded: September, 2020
Number of employees: 70
Sector: FinTech, online payment solutions
Funding to date: $116m in two funding rounds
Investors: Checkout.com, Impact46, Vision Ventures, Wealth Well, Seedra, Khwarizmi, Hala Ventures, Nama Ventures and family offices
Trump v Khan
2016: Feud begins after Khan criticised Trump’s proposed Muslim travel ban to US
2017: Trump criticises Khan’s ‘no reason to be alarmed’ response to London Bridge terror attacks
2019: Trump calls Khan a “stone cold loser” before first state visit
2019: Trump tweets about “Khan’s Londonistan”, calling him “a national disgrace”
2022: Khan’s office attributes rise in Islamophobic abuse against the major to hostility stoked during Trump’s presidency
July 2025 During a golfing trip to Scotland, Trump calls Khan “a nasty person”
Sept 2025 Trump blames Khan for London’s “stabbings and the dirt and the filth”.
Dec 2025 Trump suggests migrants got Khan elected, calls him a “horrible, vicious, disgusting mayor”
The specs
Engine: 6.2-litre supercharged V8
Power: 712hp at 6,100rpm
Torque: 881Nm at 4,800rpm
Transmission: 8-speed auto
Fuel consumption: 19.6 l/100km
Price: Dh380,000
On sale: now
It Was Just an Accident
Director: Jafar Panahi
Stars: Vahid Mobasseri, Mariam Afshari, Ebrahim Azizi, Hadis Pakbaten, Majid Panahi, Mohamad Ali Elyasmehr
Rating: 4/5