Syrian rebels clashed with regime troops in the narrow stone alleyways around a historic 12th-century mosque in the Old City of Aleppo on Thursday, while a government airstrike north of the city killed at least seven people, activists said.
The rebels, who have been slowly chipping away at the regime's hold on Aleppo, received a boost from the U.S. in their fight to oust Syrian President Bashar Assad.
Washington pledged an additional $60 million in assistance to the opposition and - in a significant policy shift - said for the first time that it will provide non-lethal aid like food and medical supplies directly to rebel forces on the ground.
U.S. Secretary of State John Kerry announced the decision Thursday on the sidelines of an international conference on Syria in Rome. European nations also were expected to signal their intention to provide fresh assistance to the opposition, possibly including defensive military hardware.
The rebels have made a number of strategic gains in northern Syria in recent weeks, including the capture of a hydroelectric dam and some military bases. They also have been hitting the heart of Damascus with mortar rounds regularly, puncturing the aura of normalcy that the regime has tried to cultivate in the capital.
In Aleppo, a key battleground in the civil war, clashes raged around the landmark Umayyad Mosque in the walled Old City, the Britain-based Syrian Observatory for Human Rights said. The rebels control one part of the mosque, and government troops hold the other.
Rebels launched an offensive on Aleppo, Syria's largest urban center and its commercial capital, in July 2012. Since then, the city has been carved into rebel- and government-controlled zones in brutal street fighting that has destroyed entire neighborhoods and damaged some of the ancient city's rich archaeological and cultural heritage.
The Umayyad Mosque, also known as the Great Mosque of Aleppo, sits near a medieval covered market in the Old City, which is a UNESCO World Heritage site. The mosque was heavily damaged in October 2012 just weeks after a fire gutted the old city's famed market.
North of Aleppo, a government airstrike on the village of Deir Jamal killed at least seven people, including five children, according to the observatory. It was not immediately clear what the target was, but regime warplanes frequently carry out bombing runs on rebel-held towns.
Farther south, in the central city of Homs, the state news agency said a car bomb caused casualties and extensive damage, but it did not elaborate.
An official in the Homs governor's office told The Associated Press that there were two blasts and that four people were killed and at least six wounded.
With the bloodshed showing no sign of abating, the Syrian opposition has grown increasingly frustrated with what it sees as the international community's apathy toward the suffering on the ground.