As fighting raged for Syria's commercial capital Aleppo on Monday, at least 39 people were killed in violence elsewhere, 11 of them civilians, the Syrian Observatory for Human Rights said.
The Britain-based watchdog said it could not swiftly give an authoritative death toll for the fierce battles in Aleppo and was only immediately able to confirm the deaths of five rebel fighters in the northern city on Monday.
"In a war context, it takes more time to accurately document the death toll," Observatory director Rami Abdel Rahman told AFP.
Elsewhere in Syria, fighting killed 14 rebel fighters and 14 government troops, the watchdog said.
Sniper fire killed a teenage boy in Madamiyeh al-Sham, outside Damascus. In Harasta, army fire killed an elderly man.
On the road to Damascus airport, unidentified gunmen assassinated civilian pilot Firas Ibrahim al-Safi, the Observatory said. The pilot's father, General Ibrahim al-Safi "held senior positions in the military leadership under president Hafez al-Assad," late father of incumbent Bashar al-Assad.
In Daraa province, south of the capital, three rebel fighters were killed in clashes with troops, while sniper fire killed a civilian.
In the eastern province of Deir Ezzor, pre-dawn gunfire killed a civilian in the town of Albu Kamal on the Iraqi border, the Observatory said.
Four rebel fighters were killed in Raqa province in the northeast, one in Idlib in the northwest and one in Damacus province, the watchdog said.
In the central province of Homs, government forces kept up their shelling of the rebel-held town of Rastan.
"Two civilians were killed today when their house was shelled," the Observatory said, adding that several neighbourhoods of Homs city were also shelled.
"Every quarter of an hour, a blast is heard in Homs."
The Observatory reported a total of nine people killed in Homs on Monday -- five rebel fighters and four civilians.
The watchdog said that the army had retaken control of parts of the Qarabis district in the city centre during the night but that the rebels still controlled 40 % of the city.