Demonstrators confronted a Syrian opposition delegation outside Arab League headquarters in Cairo on Wednesday. Some protesters called the opposition figures “traitors” and pelted them with eggs.

Reporters say the protesters were apparently concerned the opposition figures would agree to a dialogue with Syrian authorities.

The confrontation forced the four-member delegation to postpone its meeting with league officials until later in the day. They were to discuss Syria's continuing crackdown on anti-government dissent.

The Arab League plans to hold an emergency session on Saturday to discuss the apparent breakdown of an agreement under which Syrian authorities would halt violence against anti-government demonstrators.

Activists say more than 110 people have been killed in the week since Syria announced it had agreed to the plan.

Syrian opposition activists say security forces killed six more people on Wednesday.

Earlier this week, the U.N. human rights office said at least 3,500 people have been killed during the Syrian government's eight-month crackdown on dissent.