Though it's hard to tell what's going on in the video above, apparently it's footage of Iranian President Mahmoud Ahmadinejad getting a shoe thrown at him outside Cairo's al-Hussein mosque. 

RT, citing Turkey's Anatolia news agency, reports that the alleged shoer was a Syrian who has been taken into custody: 

The attacker, who attempted to hit President Mahmoud Ahmadinejad as he left a mosque, is reported to be a young man with “a Syrian accent”. Egyptian security forces managed to seize and arrest the man following the incident.

The attacker was heard chanting anti-Iranian slogans for supporting the Syrian government, the news agency noted.

This may not be be Iranian leader's first time getting hit with a shoe -- the gesture of protest made famous by Iraqi journalist Muntadhar al-Zaidi in 2008. An Iranian website reported in 2009 that Ahmadinejad had a shoe and a hat thrown at him while campaigning in the city of Urmia. There were no videos or images of that incident.