As fighting has dropped off in eastern Ukraine, pro-Russian rebels are weighing their options of waiting for the conflict to resume, return to civilian life or even head to war-torn Syria.

"There are no more battles and some people are bored," a bearded rebel fighter who goes by the name "Turok" (the Turk) told Agence France-Presse (AFP).

"The guys I know have encouraged me to go to Syria, it's warm down there."

Over 18 months of fighting between government forces and pro-Moscow insurgents who the West and Kiev insists are backed by Russia has come to a sudden halt since the two sides agreed a new truce at the start of September.

Since then Moscow has launched airstrikes in war-torn Syria at the request of long-standing ally President Bashar Assad, operations that Russia insists are hitting Islamic State of Iraq and al-Sham (ISIS) jihadists.

Now some of the pro-Russian rebels in Ukraine, many of whom hail from Russia and are described by the Kremlin as volunteers, say they are considering making for the frontline in Syria.Turok claimed many of the fighters have left eastern Ukraine for Syria to support Moscow's intervention in the country, which the West says could bolster the embattled Assad regime.

Infamous rebel commander "Motorola" – a native Russian who told a local newspaper in April that he had killed 15 Ukrainian servicemen in his captivity – is among the separatist fighters who have relocated to Syria, Turok claimed.

"Everyone knows that Motorola has gone to Syria because he is wanted in the DNR [self-proclaimed Donetsk People's Republic] for looting and destroying 90 percent of the airport," Turok said, referring to the fierce battles between Ukrainian forces and pro-Russian rebels that left the newly-built Donetsk Airport in shambles.

Turok's allegation, however, has been dismissed in local media reports, which say the rebel leader is still in the separatist stronghold of Donetsk.

Motorola refused to comment when contacted by AFP.

Reports that pro-Russian rebels have gone to Syria were not confirmed by the self-proclaimed separatist authorities, nor could they be verified by independent sources.

But the head of Russia's parliamentary Committee on Defense, Vladimir Komoedov, said Monday that he was sure pro-Moscow volunteers from eastern Ukraine would eventually end up fighting with Assad's forces.

"A unit of Russian volunteers, participants of combat operations, will most likely appear in the ranks of the Syrian army," Komoedov told the Interfax news agency on Monday. Russia's airstrikes in Syria have overshadowed the Ukrainian conflict in the Russia media, which has devoted hours of coverage to Moscow's actions several thousand kilometers away.

"Everyone is fed up with the Donbass [eastern Ukraine] and attention has turned to Syria, where there are intense battles," said 36-year-old rebel fighter Konstantin, better known as "Gin," his nom de guerre.

"When the media and society will have had enough of Syria, they will turn their focus back to us."