Brussels (dpa) - EU foreign ministers discussed the bloc's role in implementing a peace process for Libya on Monday, including the possible relaunch of a naval mission that was suspended last year amid a fierce migration dispute.

The talks in Brussels came hours after a Libya conference in Berlin at which international leaders vowed to uphold a UN arms embargo and end military support for the country's warring factions.

Libya's embattled Prime Minister Fayez al-Serraj enjoys United Nations backing and a Turkish force presence, while rival commander Khalifa Haftar has the support of Egypt, the United Arab Emirates and Russia.

Libya has been in turmoil since the 2011 overthrow of dictator Moamer Gaddafi and has become a battleground for rival proxy forces. The issue is seen as key to EU security, after the northern African country became a gateway for migrants trying to reach Europe.

At Sunday's conference, the European Union pledged to help implement the agreements reached, including possibly dispatching troops under an EU flag to monitor the ceasefire.

EU foreign policy chief Josep Borrell talked to ministers about possible steps - include the option of relaunching naval patrols in the Mediterranean Sea under Operation Sophia. The mission originally aimed to stop human trafficking and enforce the UN arms embargo on Libya.

"I think we have to revive it, yes," Borrell told journalists ahead of Monday's talks.

The patrols ended last year due to a dispute between Italy and other member states on what to do with migrants rescued by Operation Sophia. The mission still trains the Libyan coastguard.

"It collapsed at the time under [Matteo] Salvini," Luxembourg Foreign Minister Jean Asselborn said, referring to Italy's former far-right foreign minister. "Salvini is gone. We must rebuild Sophia," he added.

However, Italian Foreign Minister Luigi Di Maio insisted that the operation would have to be "dismantled and reassembled in a completely different way."

"It must be a mission to monitor the embargo and nothing else," he added. Asked if this means Operation Sophia should no longer rescue migrants at sea, Di Maio said this was "not the issue" on the table.

German Foreign Minister Heiko Maas said it was too early to say whether a renewed EU naval presence off the coast of Libya was the way forward.

"The first thing to do is to turn the fragile ceasefire that we have into a [proper] truce," he told journalists following the Brussels talks, adding that there would be a debate on a broad range of instruments.

No final decisions were taken on Monday, with ministers expected to return to the issue in more detail when they next meet in a month's time. The EU has come under fire in the past for its cooperation with the Libyan coastguard, which has been accused of human rights violations.

Speaking in Brussels, Greek Foreign Minister Nikos Dendias - whose country was not invited to the Berlin talks - welcomed the progress made on Sunday and said Athens would support all further steps.

"This is the first time ... that Europe has regained control," his French counterpart Jean-Yves Le Drian said after Monday's talks.

The German government said that the implementation of the peace process in Libya was now up to the warring parties on the ground.

The Berlin peace conference was aimed at supporting the efforts of the United Nations' special envoy for Libya, Ghassan Salame, government spokesman Steffen Seibert said.

In Moscow meanwhile, Russian President Vladimir Putin's spokesman Dmitry Peskov said a "very important step" had been taken towards resolving the conflict in Libya, according to Russian state news agency TASS.