Three people were arrested on Saturday over their alleged involvement in the kidnapping of the Turkish pilot and copilot last week in Beirut, the state-run National News Agency reported.

"The Internal Security Forces' Intelligence Branch announced arresting three people suspected of being involved in kidnapping the Turkish pilots,” the NNA said.

Turkey's prime minister lashed out Saturday at the international response to the escalating crisis in Egypt, saying organizations including the U.N. and EU should be ashamed of their "inaction."

"Let me say very clearly, the United Nations Security Council no longer has the right to look at itself in the mirror, it's so ashamed, because it couldn't condemn what's happening in Egypt," said Prime Minister Recep Tayyip Erdogan.

Thousands of supporters of Egypt's ousted leader Mohammed Morsi took to the streets in Turkey on Saturday to denounce "massacres" of his loyalists.

Some 4,000 people gathered at a mosque in Istanbul shouting "Down with (army chief Abdel Fattah) al-Sisi" and "Morsi in power!" an Agence France Presse photographer reported.

Turkey's prime minister has accused the banned Kurdistan Workers' Party (PKK) of failing to withdraw its fighters from Turkey as agreed under a peace process, press reports said Saturday.

The PKK agreed this year to withdraw its estimated 2,000 fighters to their bases in northern Iraq. In return, it is demanding wider constitutional rights for Turkey's 15 million Kurds.

Free Patriotic Movement leader MP Michel Aoun condemned on Friday the blast that took place in Beirut's southern suburb of Ruwais on Thursday, saying it should motivate leaders to form a new government.

He told OTV: “The attack may be a valid excuse to form a national unity cabinet because all powers are being targeted.”

Cairo has cancelled naval exercises with Turkey scheduled to take place in October to protest Ankara's "clear interference" in Egypt's domestic affairs, the foreign ministry said on Friday.

The measures were in "protest at the unacceptable Turkish statements and actions which represent a clear interference in Egypt's domestic affairs and stand against the will of the Egyptian people," the ministry said in a statement.

Turkey's clout in the Middle East is taking a beating with the brutal sidelining of Egypt's Muslim Brotherhood derailing Ankara's hopes to lead a regional surge of Islamist political power, analysts say.

Turkey's ruling Justice and Development Party (AKP) was an early supporter of the 2011 uprising that ousted President Hosni Mubarak and subsequently nourished close ties with the Muslim Brotherhood.

Turkish Prime Minister Recep Tayyip Erdogan on Thursday denied rumors that he was sick and lashed out at the local media for disseminating false news.

"Thank God, I am doing quite well," Erdogan told reporters at Ankara airport before leaving for Turkmenistan.

Four people have been summoned for investigation over their links to the abduction of the two Turkish pilots in Beirut last week, reported al-Joumhouria newspaper on Thursday.

Caretaker Interior Minister Marwan Charbel told the daily that the individuals are relatives and friends of the Lebanese pilgrims held in Syria's Aazaz region.

Hizbullah "lamented" on Wednesday the kidnapping of the Turkish pilot and copilot, noting that efforts are exerted to release the abducted Turks and the Lebanese pilgrims.

"Hizbullah condemns the kidnapping of the two Turkish pilots and all abductions of civilians,” the party's MP Mohammed Raad said after meeting with Turkey's ambassador to Lebanon Inan Ozyildiz.