BEIRUT, Lebanon –
Insurgents’ stunning march across Syria gained speed on Saturday with news that they had reached the suburbs of the capital and with the government forced to deny rumors that President Bashar Assad had fled the country.
The rebels’ moves around Damascus, reported by an opposition war monitor and a rebel commander, came after the Syrian army withdrew from much of southern part of the country, leaving more areas, including several provincial capitals, under the control of opposition fighters.
The advances in the past week were among the largest in recent years by opposition factions, led by a group that has its origins in al-Qaida and is considered a terrorist organization by the U.S. and the United Nations. As they have advanced, the insurgents, led by the Hayat Tahrir al-Sham group, or HTS, have met …