For the second time in two days, a rocket fired during clashes between Syrian regime forces and rebels exploded in the Golan Heights on Wednesday without causing casualties, the IDF told AFP.

“A rocket fired in the morning during fighting inside Syria exploded on the Golan, without causing casualties or damage," an Israeli military spokeswoman was quoted as having said.

The latest spillover of fire from the conflict comes a day after the Golan was hit by mortar rounds which the IDF said were fired at "villages inside Syria and are part of the ongoing internal conflict."

AFP reported that on Tuesday, the Britain-based Syrian Observatory for Human Rights said at least five Syrian troops and two rebels were killed after insurgents attacked army checkpoints near the Golan.

The clashes took place in the villages of Hamidiyeh and Horriyeh in Quneitra province, located in the small part of the Golan that is not held by Israel, it said.

On Tuesday Israel filed a complaint with the United Nations over the Syrian mortar shells which landed in the Golan Heights.