Syria's Internet appeared to be almost completely shut down Tuesday afternoon, according to the cybersecurity firm Umbrella.
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Servers reportedly noticed a steep drop in the country's Web traffic at around 2 p.m.
"On closer inspection, it seems Syria has largely disappeared from the Internet," said Dan Hubbard, Umbrella's chief technology officer, in a company blog post Tuesday.
Akamai—an Internet content delivery network—as well as Rensys are both also reporting the outage.
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The war-torn country experienced an Internet outage last November that lasted for more than two days.
(Read More: Syria's Internet Connection Gets Cut Off)
—By CNBC's Cadie Thompson. Follow her on Twitter