BEIRUT — Syrians are being killed at an average rate of 5,000 per month, the U.N. said Thursday as it raised the overall death toll in the civil war to nearly 93,000, with civilians bearing the brunt of the attacks.
The grim estimate reflects the growing sectarian nature of the bloodshed as the regime of President Bashar Assad scores a series of battlefield successes against the rebels.
The toll also is a reminder of the international community's helplessness in the face of a conflict that has displaced several million people and spilled over into neighboring countries with alarming frequency.
Adding to the pressure for international action, the United States announced Thursday it had conclusive evidence that Assad's regime has used chemical weapons, including the nerve agent sarin, on a small scale against opposition forces. The White House said multiple chemical attacks last year killed up to 150 people.
Three U.S. officials said President Barack Obama has authorized sending weapons to Syrian rebels for the first time. Obama has said the use of chemical weapons cross a "red line" triggering greater U.S involvement in the crisis.
The U.S. officials said the administration could provide the rebels with a range of weapons, including small arms, ammunition, assault rifles and a variety of anti-tank weaponry such as shoulder-fired remote-propelled grenades and other missiles. However, no final decisions have been made on the type of weaponry or when it would reach the rebels, according to the officials, who insisted on anonymity in order to discuss internal administration discussions.
In the latest violence, a mortar round slammed into an area near the runway at Damascus International Airport, briefly disrupting flights to and from the Syrian capital, officials said. The attack Thursday came a few weeks after the government announced it had secured the airport road that had been targeted by rebels in the past.
It was the first known attack to hit inside the airport, located south of the capital, and highlighted the difficulty Assad faces in maintaining security even in areas firmly under his control.