The summit in Paris enabled "the resumption of a direct dialogue" between the presidents of the two countries, though no accord was reached, the French presidency yesterday said in a statement after the talks ended.
The Armenian and Azerbaijani leaders however agreed to an exchange of information about people reported missing in the conflict, under the aegis of the International Committee of the Red Cross, the statement added.
The meeting followed a visit by German Foreign Minister Frank-Walter Steinmeier to both countries last week after a sharp escalation in violence over the region in recent months amid European concerns about the war raging in Ukraine.
Despite years of negotiations since a 1994 ceasefire, the two sides have not yet signed a final peace deal on Karabakh, still internationally recognised as part of Azerbaijan.
Oil-rich Baku, whose military spending exceeds Armenia's entire state budget, has threatened to take back the region by force if negotiations do not yield results.
Armenia -- heavily armed by Russia -- says it could crush any offensive.
Although few expected a breakthrough in Paris after more than two decades of bloodshed, a French diplomatic source said it was "important to bring the two presidents together, to call on them to work together, to get back to the table to reduce tensions".
The two leaders have said they will continue their dialogue, notably on the margins of the UN General Assembly next year, the French presidency said.
He hosted the talks in Paris with representatives of the Minsk group of mediators in the conflict appointed by the OSCE in 1992, which France co-chairs with Russia and the United States.
