Fierce fighting is reported near Damascus airport, as internet and phone links in Syria remain cut for a second consecutive day.
The Syrian Observatory for Human Rights in London said the main road to Damascus from the airport, which was closed on Thusday due to the fighting, was open again, but a bus carrying airport employees was hit by a shell, killing two people.
Many flights in and out of Damascus are cancelled for a second day because airlines say they currently are not able to use the airport.
The BBC reports Emirates and Egypt Air cancelled flights to Damascus on Thursday. Royal Jordanian Airways also said it had suspended its Damascus route.
Air Arabia told the BBC on Friday that its service to Damascus had been cancelled.
A source in the Free Syrian Army told the BBC that the attack on the airport had been planned for a long time.
The rebels were well armed after capturing government weapons, including heavy weapons, in recent weeks, the source added.