Syrian opposition rivals in Cairo scuffle
Syrian protesters have thrown eggs at opposition delegates who were in Cairo for a meeting with the Arab League.
The delegation from the Syrian National Coordination Committee was targeted because of its perceived moderate stance towards the Syrian regime.
It was intending to discuss the Arab League's plan to end bloodshed in Syria and begin dialogue.
Violence has continued in Syria since the government said it had agreed to the plan a week ago.
Activists say more than 100 people have died in the province of Homs alone.
On Wednesday, more than 20 people were killed in Homs, Daraa, Hama and elsewhere in Syria, according to the Local Coordinating Committees, an activist network.
Demonstrations were reported to have erupted in some places where the security forces have withdrawn, such as Kesweh and Hama.
Reports from inside Syria are hard to verify as the Syrian government has severely restricted access for foreign journalists.
'Insiders' and 'outsiders'
In the Egyptian capital, protesters in front of the headquarters of the Arab League carried banners reading: "The National Coordination Committee does not represent me."
The NCC delegation, headed by Hassan Abdul-Azim, was planning to meet Arab League Secretary General Nabil al-Arabi.
The Arab League is due to hold an emergency meeting on Saturday to discuss the escalation of violence in Syria and the apparent failure of the Syrian regime to implement the League's initiative.
One Syrian opposition group, the Syrian National Council, which is mainly led by people outside the country, has said it is too late for dialogue and that bringing down President Bashar al-Assad's regime is now the only option.
The NCC, based mainly inside Syria, is perceived to have a softer position - though it says it would only consider dialogue after the regime ends its crackdown.
"After that, we will enter negotiations over changing the regime from its current form to a democratic one," Hussein al-Odat, a member of the NCC based in Damascus, told the Associated Press news agency.
More than 3,500 people have died in months of anti-government protests in Syria, according to the UN.