Greece's coastguard on Sunday said four people had been confirmed drowned in the latest boat sinking in the Aegean Sea, while around 100 migrants had been rescued in other incidents.

The coastguard said it had recovered the bodies of a man and a young boy of around 10, part of a group of over 30 people whose boat capsized as they tried to reach the island of Samos on Friday.

British police on Saturday bailed a 22-year-old man who was arrested this week on suspicion of terrorism offences as he attempted to board a flight to Turkey, a well-traveled route to Syria.

The unnamed man was arrested on Wednesday at Luton airport, north of London, on suspicion of being involved in the preparation of acts to commit terrorism.

A popular Turkish female pop singer was under pressure Friday to make a public apology after she posted a succession of anti-Semitic tweets over Israel's deadly air campaign in Gaza.

Yildiz Tilbe, who has been making folk-influenced hit albums since the 1990s, appeared to praise Hitler in the tweets and say the end of the Jews was near.

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.

British police said Friday they had arrested a 22-year-old man on suspicion of terrorism offenses as he attempted to board a flight to Turkey, a well-traveled route to Syria.

The unnamed man was arrested on Wednesday afternoon at Luton airport, north of London, on suspicion of being involved in the preparation of acts to commit terrorism.

Turkish lawmakers Thursday adopted a bill to revive peace talks with Kurdish rebels, in a move the government hopes will rally Kurdish votes to Prime Minister Recep Tayyip Erdogan bid to win presidential elections next month.

The jailed leader of the outlawed rebel Kurdistan Workers' Party (PKK), Abdullah Ocalan, hailed the move as a "historic development" and called on Turkey to implement the law "without losing time".

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.

Before she began working as a hairdresser, poverty forced Syrian Umm Mahmoud to seek donations for food and rent money to survive as a refugee in Lebanon.

Often men suggested she have sex with them to show her gratitude, the 32-year-old said.

Two 22-year-old British men pled guilty to terrorism charges on Tuesday after returning from months spent in Syria.

Childhood friends Mohammed Nahin Ahmed and Yusuf Zubair Sarwar admitted spending eight months in the war-torn country fighting alongside a group linked to al-Qaida.