Greece and Turkey are close to reviving talks on long-standing maritime disputes following a tense standoff over rights to exploit potential offshore natural gas deposits in the eastern Mediterranean, a Greek official said Monday, AP reports.

“We are close to restarting the exploratory talks,” Greek government spokesman Stelios Petsas told reporters. “There will be an announcement when this is finalized but the atmosphere is good.”

Petsas also confirmed local media reports that U.S. Secretary of State Mike Pompeo is expected to visit Greece for a meeting with Greek Prime Minister Kyriakos Mitsotakis to discuss the crisis, but said the schedule is still being worked out.

Greek-Turkish talks on maritime boundaries were last held in 2016.