Israel has offered Turkey $20 million in compensation to the families of those killed and wounded in its botched 2010 raid on a Gaza-bound flotilla, Haaretz newspaper reported on Monday.

Citing unnamed Western diplomats briefed on ongoing negotiations with Ankara, the daily said Turkey had yet to respond to the Israeli offer.

Four policemen went on trial amid tight security in Turkey on Monday, accused of beating to death a 19-year-old student in the huge anti-government protests that rocked the country last June.

The high-profile court case comes as Prime Minister Recep Tayyip Erdogan battles his biggest crisis in 11 years in power, which has hit the economy and is threatening the strongman's presidential ambitions.

Turkey's Foreign Minister Ahmet Davutoglu lashed out Sunday at the world community's failure to end the bloodshed in Syria, saying that one day a U.N. chief will apologize for it.

"The international system is failing like it failed in Bosnia for three years, like it failed in Rwanda for many years," Davutoglu told the Munich Security Conference (MSC).

The Turkish army said Wednesday it had opened fire on a convoy of vehicles in northern Syria belonging to the Islamic State of Iraq and the Levant (ISIL) jihadist group.

The army said the attack, carried out Tuesday, came after two Turkish military vehicles had been fired upon at the Cobanbey border post in the south of the country.

Two prosecutors were removed from a corruption investigation targeting members of Turkey's elite allegedly because they summoned two business leaders to testify, media reports said Wednesday.

Chief prosecutor Hadi Salihoglu, named January 16 as the government has sought to rein in the high-profile investigation, removed prosecutors Celal Kara and Mehmet Yuzgec from the probe, the Hurriyet newspaper reported, citing judicial sources.

For every Ukraine protester smashing in a window, throwing a Molotov cocktail or being hit by riot police, there will be several people standing nearby with their smartphones aloft livestreaming the event.

Web channels have sprung up -- some with presenters in improvised studios commenting in real time on the live feeds from protests in Kiev and beyond -- and clips of some of the most shocking clashes have gone viral on social media.

Turkish Prime Minister Recep Tayyip Erdogan arrived in Tehran on Tuesday evening on an official visit expected to be dominated by trade ties and the Syrian civil war.

The visit comes as the two countries are trying to rebuild relations strained by the situation in Syria, with Iran supporting President Bashar Assad while Turkey backs the rebels seeking to oust him.

Turkey's central bank, fighting to defend the lira, raised sharply its inflation forecast for 2014 to 6.6 percent from 5.3 percent on Tuesday.

"We have updated our 2014 inflation estimate by 1.3 points" the bank's governor Erdem Basci said in remarks broadcast live.

Turkish Prime Minister Recep Tayyip Erdogan is due in Tehran Tuesday evening, as both countries seek to expand economic ties and hold talks on the Syrian civil war, an Iranian official said.

Iran is a main ally of Syrian President Bashar Assad, while Turkey supports the rebels seeking to oust Assad, and relations have been strained.

French President Francois Hollande arrived in Turkey on Monday for a state visit amid a political crisis plaguing the Turkish government and turmoil roiling his private life.

Hollande's two-day visit is the first by a French head of state in 22 years and reflects a thaw in ties that were frosty over France's stance on Turkish accession to the EU and the genocide of Armenians.