Foreign ministers from the Arab League are due to meet to debate the initial findings of their mission in Syria and to discuss whether to ask for UN help.
An observer mission sent by the League to assess a peace plan has been criticised as toothless, as violence continued despite its presence.
At least 27 people died across the country on Saturday, activists said.
The clashes came as thousands joined a state-organised funeral for victims of a bomb blast on Friday in Damascus.
At least 26 people died in that attack, some of them members of the security forces.
‘More independently’
The Arab League observers have been in Syria since late December to monitor compliance with a peace plan under which the government promised to withdraw the military from the streets and cease its use of force against civilians.
The ministers meeting in Cairo are expected to examine a proposal by Qatar for UN human rights experts to be invited to assist their work, in order to judge whether the Syrian authorities are honouring their pledge.
They will also look at how the observers can operate more independently of Syrian authorities. Currently they are required to be escorted by members of the Syrian security officials.
The UN says more than 5,000 civilians have been killed since protests against President Bashar al-Assad began 10 months ago.
Critics say Mr Assad is using the monitors’ presence as a political cover and that attacks continue.
According to the Syrian opposition Local Co-ordination Committees (LCC), 27 people died around the country on Saturday – eight in Homs, 13 in Idlib, five in the suburbs of Damascus and one in Hama.
Local opposition groups said 35 had been killed on Friday, in the anti-government protests which have routinely followed Friday prayers. None of these numbers can be verified.
Pro-Assad chants
Saturday’s funerals were held at a mosque in the district of Midan, where Friday’s bomb attack took place. It is usually a hotbed of protests against the government.
But analysts said the ceremony and procession had clearly been organised by the authorities, with many participants carrying pictures of Mr Assad or national flags, which were also used to cover the coffins.
Some of those taking part were also heard chanting pro-government slogans, like «The people want Bashar al-Assad!» and «One, one, one, the Syrian people are one!».
The Damascus blast happened at a busy junction in the Midan district of Damascus.
Interior Minister Ibrahim al-Shaar blamed the attack on a suicide bomber, who he said had «detonated himself with the aim of killing the largest number of people».
The government has vowed to «strike back with an iron fist» against the perpetrators.
But the country’s main opposition coalition, the Syrian National Council (SNC) said the attacks had been carried out by Mr Assad’s government to discredit its critics.
Two weeks ago 44 people died in similar blasts also blamed on terrorists but which opposition groups accused the government of staging.
Source: BBC