Egypt, Greece and the Greek Cypriot Administration on Saturday underlined the need for their joint cooperation in the fight against terrorism.

Egyptian President Abdel-Fattah al-Sisi, Greek Prime Minister Antonis Samaras and head of the Greek Cypriot Administration Nicos Anastasiades signed the "Cairo Declaration during their tripartite talks in Cairo.

The three officials called on other countries to join hands in the fight against the "existential threat of terrorism".

"We reaffirmed our determination to decisively fight terrorism and extremism," al-Sisi said during a joint press conference in Cairo.

The three officials expressed deep concern over the situation in Libya, which has been in turmoil since the ouster and subsequent killing of strongman Muammar Gaddafi in 2011.

They also said that they would take suitable measures to support calls for an immediate cessation of violence in Libya and holding political dialogue for achieving reconciliation in the country.

The three officials also agreed to "urgently" resume their negotiations on defining their maritime boundaries and underlined the importance of respecting the "sovereignty of Cyprus over its own economic zone."

They went on to call on Turkey to stop its current seismic survey "within the maritime boundaries of Cyprus" and to refrain from carrying out similar activities in the future.

The three top officials also called for bringing about a just, comprehensive and lasting settlement to the "Cypriot problem" with a view to unifying the island in line with international law.

Al-Sisi said his country would seek to fully exploit agreements it previously signed with Greece and the Greek Cypriot Administration in all fields.

"This derives from our respect for the rules of international law and the principles and objectives of the United Nations Charter, particularly when it comes to the sovereignty of countries, the need not to violate their borders or interfere in their internal affairs," al-Sisi said.

Anastasiades, meanwhile, said his talks with the Egyptian and Greek leaders focused on internal developments in Egypt as well as what he described as "violations committed by Turkey" in the Greek Cypriot Administration.

He went on to say that the Turkish "violations" impeded the negotiation process in the area.

Anadolu Agency