Fighter jets have attacked targets near Marea, north of Aleppo, according to Sky's special correspondent Alex Crawford.
Reporting from the scene, Crawford said: "We were right under one of the president's fighter jets which was operating in the Marea area 25km north of Aleppo.
"This jet flew down very low, we saw it drop two sets of bombs, there appeared to be no military targets there.
"One bomb landed near a school on top of a house that was unoccupied at the time, the other landed near a communications target.
"Earlier in the day there were more flights by fighter jets, both times they appeared to be targeting the two hospitals in Aleppo.
"There have been a lot of injuries as a result, many of them children. One child was only 11 years old who had shrapnel in the left side of his lung which had gone all the way through.
"The main hospital is used by the Free Syrian Army (FSA) as its field hospital. There were a number of injured soldiers; one was shot in the head but he had a very lucky escape, (the bullet) just skimmed the side of this head.
"But there were many more civilian casualties, including one dead child I saw. The back of his head had been completely blown away when one of the shells landed in his garden."
The latest violence close to Syria's largest city came as regime troops forced a small group of rebels to abandon the Daraya neighbourhood of Damascus.
Hundreds of soldiers and dozens of tanks and armoured vehicles pushed into the area, according to opposition activists.
"There are lots of bodies trapped in destroyed buildings and civilians are trying to flee towards Damascus," an activist in Daraya, who gave his name as Abu Kinan, told Reuters by phone.
More than 3,500 Syrians have fled over the northern border with Turkey in the last 24 hours, the highest number since the uprising began in March 2011, according to Turkish officials.
More than 200,000 refugees have now left the country for Turkey, Lebanon, Jordan and Iraq, the UN High Commissioner for Refugees said.
"There has been a dramatic increase in the number of refugees in the region during August, we're now at over 200,000 refugees in the region, that's over and above our planning figure for all 2012 of 185,000 refugees," spokesman Adrian Edwards said.
Meanwhile, it has been reported that two television reporters have gone missing and are being be held by pro-government forces.
Bashar Fahmi, a Jordanian citizen of Palestinian origin, and his Turkish cameraman, Cuneyt Unal, are said to have been captured in Aleppo.
Meanwhile, the father of an American journalist working in Syria said his son has not been in contact with his editors or his family in more than a week.
Austin Tice has reported for The Washington Post and other media outlets from Syria, where he recently spent time with rebel fighters.
Syrian troops backed by tanks were also reported to have entered the centre of Daraya, a town on the southwest edge of Damascus.
The move comes after three days of heavy ground and helicopter bombardment, according to opposition activists.
Hundreds of troops and dozens of tanks and armoured vehicles were seen on al Thawra street in central Daraya as a core group of Free Syrian Army fighters pulled out, activists said by phone from the Syrian capital.