ANKARA (Reuters) -Turkey's spy chief met with his Egyptian counterpart and Qatar's foreign minister in Cairo on Tuesday to discuss transitioning to the second phase of the Gaza ceasefire deal and increasing joint efforts in coordination with the U.S., a Turkish source said.

"During the meeting, (they) also agreed to continue strengthening coordination and cooperation with the Civil Military Coordination Center (CMCC) to eliminate all obstacles to ensure the continuity of the ceasefire and to prevent further violations," the source said, adding that the three officials also discussed countering Israeli violations of the accord.

(Reporting by Ece Toksabay; Writing by Tuvan GumrukcuEditing by Gareth Jones)