Israel said on Thursday its aircraft struck a Hamas military site in the Gaza Strip overnight after balloons carrying firebombs and explosives were launched from the Palestinian enclave.
The Britain-based monitor said Russian aircraft carried out the air raids, but Moscow denied it was responsible.
At least 45 other people were wounded in the air raid that hit “a wholesale vegetable market in the town of Maaret al-Numan” in Idlib province, the Syrian Observatory for Human Rights said.
Fifteen others were also wounded in the attack near Yadud village, some seven kilometres (four miles) outside the provincial capital of Daraa city, the Britain-based monitor said.
Libya is one of the main departure points for African migrants, fleeing poverty and war, to try to reach Italy by boat, but many are picked up and brought back by the Libyan coast guard, supported by the European Union.
An air strike late on Tuesday hit a detention centre for mainly African migrants in a suburb of the Libyan capital of Tripoli, killing at least 40 people and wounding 80, a health official said.
The UN Security Council called on Friday for a ceasefire in Libya as the death toll from a three-month offensive on Tripoli reached 1,000, including scores killed in an air strike that hit a detention centre
Syrian regime bombardment has killed 14 civilians including seven children in northwestern Syria, a war monitor said on Saturday, in the latest deadly raids on the embattled opposition bastion.
Government planes and helicopters launched more than 280 strikes on Sunday and Russian jets had carried out 15, said Director of the Observatory.