At least 10 soldiers were killed and nine wounded in a rocket attack that targeted a military bus in Syria's Aleppo on Friday, state news agency SANA reported.
The bus was hit with an anti-tank guided missile in Angara area in Aleppo western countryside, a military source was quoted as saying.
The Syrian Observatory for Human Rights said that the bus was carrying fighters loyal to the Syrian government.
The Britain-based watchdog added that the number of deaths is likely to increase because some of those wounded are in critical condition.