A video footage published on YouTube appears to show two Russian fighter jets performing a stunt in Syrian skies.
The video is said to have been filmed in the Syrian province of Latakia, which hosts the Hmeymim air base. Russian aircraft, which take part in Moscow's anti-Daesh campaign, are stationed at the base.
Last month, Twitter users posted photos of a heart shaped vapor trail supposedly left by two Russian planes on February 14. The pictures are alleged to have been taken in the province of Daraa.
The video and the photos have gained traction among Arab social media users.