Turkish Prime Minister Recep Tayyip Erdogan rejected Monday a donation from his main rival in August's presidential election in a highly unusual gesture for the sometimes bruising world of Turkish politics.

The main opposition candidate Ekmeleddin Ihsanoglu donated 1,000 lira ($470) to Erdogan's campaign fund and transferred a similar sum to the third candidate, the pro-Kurdish HDP's candidate Selahattin Demirtas.

Turkish Prime Minister Recep Tayyip Erdogan on Friday accused Israel of a policy "based on lies" over its aerial bombardment of Gaza, in his latest vehement criticism of the Jewish state.

Speaking to supporters in Istanbul, Erdogan pointed out that 100 Palestinians had now been killed in the Israeli campaign while no Israeli's had died due to Palestinian attacks.

Turkish Prime Minister Recep Tayyip Erdogan on Friday vowed to press for a new constitution if he is elected president in August elections, saying the old Turkey was a "thing of the past".

"A new constitution on the path to new Turkey will be one of our priorities if elected president... A new constitution means a new future," he told thousands of cheering supporters at a rally in Istanbul.

The main rival of Prime Minister Recep Tayyip Erdogan in Turkey's presidential election launched his campaign on Thursday, positioning himself as a unifying figure against a dangerously polarizing opponent.

Seeking to make clear the differences between himself and the premier, Ekmeleddin Ihsanoglu is urging voters in the August 10 poll to unite behind him after a turbulent year that saw the country divide between Erdogan's pious supporters and the secular segments of society.

Turkish Prime Minister Recep Tayyip Erdogan on Tuesday vowed to take the fight against an ally-turned-foe Muslim cleric to a new level if he is elected president in August 10 elections.

"If elected president, I will take the fight against the parallel structure to the next level," Erdogan told lawmakers of his ruling Justice and Development Party (AKP) in parliament.

A Turkish court on Monday arrested a riot policeman accused of killing a protester during mass anti-government protests last year, in a key victory for the victim's family.

The family of 26-year-old Ethem Sarisuluk -- who was shot dead in anti-government protests in Ankara -- has long denounced the trial as biased and pointed to alleged political pressure on the judiciary.

Turkish police have ordered a major new investigation into the movement run by an influential Muslim cleric locked in a feud with Prime Minister Recep Tayyip Erdogan, over an alleged plot to overthrow the government, a report said on Monday.

U.S.-exiled Fethullah Gulen has long been accused by Erdogan of using his Hizmet (Service) movement, whose supporters have strong ties to Turkey's police and judiciary, to instigate a corruption probe implicating key government allies.

Prime Minister Recep Tayyip Erdogan appears all but assured of winning upcoming Turkish presidential polls, but he could find himself in charge of a far more fragile economy than in the last decade of his rule.

Analysts say the Turkish strongman is jeopardizing the long-term health of the economy by picking a fight with the nominally independent central bank and pushing it towards a looser monetary policy at a time of stubbornly high inflation.

Turkish Prime Minister and presidential hopeful Recep Tayyip Erdogan ridiculed his main election opponent on Sunday, referring to him as "mon cher" -- a derogatory term used in Turkey to describe elitists.

"They ask a candidate whether he will address the issue of roads (construction) if elected. He replies he has nothing to do with roads ... They are mon cher but we are servants," Erdogan told thousands of supporters in a rally in the eastern province of Erzurum.

Turkish Prime Minister Recep Tayyip Erdogan kicked off his presidential campaign on Saturday by promising to transform the role into a more powerful position if he wins the August polls.

"We are taking the first step of a new beginning", he told thousands of cheering supporters in mass rally in the northern city of Samsun, just days after announcing his candidacy.