Former UN secretary general Kofi Annan arrived in the Iranian capital of Tehran on Sunday to hold talks with Iranian officials on regional issues.
A senior Palestinian official and a pro-peace member of the Israeli Knesset (parliament) met on Saturday in the West Bank city of Ramallah to precipitate Mideast peace talks.
A suicide bomber attacked an Afghan army bus in Kabul on Sunday, killing four people and wounding up to 22, police said, the latest incident in a worrying surge of violence in the Afghan capital over the past 10 days.
Syria's civil war foes held their first face-to-face meetings, launching talks aimed at ending nearly three years of conflict which has killed 130,000 people.
Syrian government and opposition representatives sat together Saturday in a joint meeting with UN-Arab League envoy Lakhdar Brahimi, tentatively initiating talks to end their three-year-old war.
A suicide car bomber blew himself up in the parking lot of a top security compound in central Cairo on Friday, killing at least four people in one of the most high-profile attacks on the state in months, security sources said.
Syrian Foreign Minister Walid al-Moualem was quoted by state television on Friday as telling international mediator Lakhdar Brahimi that if no serious work sessions were held by Saturday, the government delegation would leave.
United Nations mediator Lakhdar Brahimi is going to have meetings with delegations of the Syrian government and the opposition separately on Friday, confirmed a UN spokeswoman.
At least three people were killed in a powerful explosion which rocked a police headquarters in downtown Cairo early Friday, according to the online edition of Al Ahram newpspaer.
Syria's government and opposition, meeting for the first time, vented their mutual hostility but a UN mediator said the enemies may be ready to discuss prisoner swaps, local ceasefires and humanitarian aid.
International peace talks to address Syria's almost three-year-old civil war opened in Montreux near Geneva on Wednesday with a speech by UN Secretary General Ban Ki-moon.
UN Secretary-General Ban Ki-moon says that the peace talks for Syria, which opened Wednesday in Switzerland, face "formidable" challenges.