Syrian rebels claiming the hit.

http://www.guardian.co.uk/world/2013...-syria-lebanon

A senior commander of Iran's elite Revolutionary Guards has been killed while travelling from Syria to Lebanon, according to Iranian authorities.

A man identified as General Hassan Shateri was reportedly assassinated by what Iranian officials described as "the agents and supporters of the Zionist regime" while travelling from Damascus to Beirut.

It was not immediately clear in which of the two countries Shateri was killed but a Syrian rebel commander said an Iranian official was killed in an attack carried out by Syrian rebels in Zabadani in southwestern Syria, close to the Lebanese border.
More at the link. By the way this thing could be hitting a turning point. Apparently the opposition has reached Aleppo airport and are trying to take it from the government. If that happens it could change a lot in the north.