Recent unrest has highlighted the deep-seated frustration felt by many Iranians over the economy and their demands for reform, and attention now turns to how the political establishment will respond.

Often seen in monolithic terms outside the country, Iran's politicians are vetted by a conservative-dominated Guardian Council to ensure they are loyal to the Islamic revolution, and ultimate power rests with supreme leader Ayatollah Ali Khamenei.

With protests appearing to die down in Iran, analysts say President Hassan Rouhani faces both challenges and opportunities for his efforts to reform the country.

Iran has seen its largest anti-government protests since the disputed presidential election in 2009, with thousands taking to the streets in several cities in recent days.

Travel restrictions and moves by the government to shut down social media networks have limited the ability of journalists to cover the ongoing unrest, which reportedly has killed at least 13 people. Here's what we know so far:

Russian President Vladimir Putin on Thursday called an explosion that tore through a Saint Petersburg supermarket, wounding 13 people, "an act of terror." 

Syria's ruined rebel holdout region of Eastern Ghouta, from where urgent UN-demanded medical evacuations started on Wednesday, has been under siege for four years, suffering attacks and malnutrition.

Washington's latest overwhelming defeat at the United Nations may have been an embarrassment, but any claim it has lost its role as Middle East peace mediator will likely prove premature.

The war in Syria seems to be winding down nearly seven years into the conflict, largely because of Russian-backed government victories and local cease-fires aimed at freezing the lines of conflict.

Underscoring this perception is the fact that President Bashar Assad — however battered and bruised — has survived the war, sitting more comfortably now than at any time since the rebellion against his rule erupted in March 2011.

Catalans are voting Thursday to try and solve a crisis triggered by an independence drive in one of the most strategic regions of Spain, the eurozone's fourth-largest economy.

Catalonia goes to the polls Thursday, in a vote that pits separatist leaders against candidates who want to stay part of a unified Spain.

The streets of Kalasseh, a neighbourhood of Aleppo formerly held by rebels, are jammed with traffic again and its pavements are packed with people and overflowing market stalls.