Libya is the latest North African country to experience internet trouble as democratic protests continue to sweep the region.
The massive Saharan country, long controlled by the dictator Moammar Gadhafi, has suffered "rolling blackouts" of its internet connections during the regime's ongoing violent crackdown on protestors, according to the internet traffic monitor Renesys.
The cause of these internet service cuts, however, remains uncertain. Possibilities include a government crackdown, an internet traffic overload or simple power outages, said Jim Cowie, Renesys' co-founder.
"If this had happened in any other country I might have said, 'Oh, that's just a provider. Maybe they had a power outage in their data center and their servers wouldn't start up," he said.
CNN's Ben Wedeman, one of the few independent journalists on the ground in eastern Libya, wrote that "the electricity was working. The cell phone system is still functioning, though you can't call abroad. The internet, however, has been down for days."
Google's online "Transparency Report" shows internet searches from Libya, which is controlled by anti-government demonstrators, have been happening at below-average levels in recent days. And Arbor Networks, a network security company, issued similar findings.
International internet traffic to and from Libya was shut down on Saturday morning from about 1 to 8 a.m. and again on Sunday during the same timeframe, according to Renesys' analysis, which was posted on the company's blog and is based on traffic data the company collects from internet service providers around the world.
It's almost as if the country had instituted a "overnight internet curfew," Cowie said, adding it's possible that Gadhafi's government wanted to crack down on cyber dissidents who are known to organize online while other people sleep.
Reports of wider-spread internet outages could be an indication that Libya is using more sophisticated methods to control the internet, some of which wouldn't be visible to international traffic monitors like Renesys.