RABAT, June 18 (Reuter) - European Commission fisheries mediator Emma Bonino said the EU and Morocco were still far apart on a fishing agreement after what were described as "difficult talks" failed to break the deadlock on Saturday.

"Unfortunately, the EU and Morocco are still far apart from settling their fish dispute," Bonino told a news conference on Saturday night after her fourth meeting in 48 hours with Moroccan officials, including Prime Minister Abdellatif Filali.

"No date for the next round of negotiations has been set," Bonino said. She declined to comment on the content of the discussions.

A European Union diplomat said "Bonino held difficult talks with the Moroccans," but gave no details.

Moroccan and European Union officials have negotiated for months over fishing quotas for European ships in Moroccan waters but have failed to reach agreement.

Morocco did not accept an offer made by the EU, which it considered "unacceptable," officials said.

Morocco is demanding cuts of up to 65 percent in fish quotas in a three-year deal. The EU does not accept this, or a Moroccan demand that ships unload more fish in Morocco.

Rabat in turn has rejected EU counter-proposals and ordered all EU vessels out of its waters, which include some of the richest fishing areas in the world.

"Bonino brought no new proposals. Morocco in turn is standing firm behind its demands," a Moroccan official said.

A previous accord which expired in April gave licences to 730 EU vessels to fish along Morocco's enormous Atlantic Ocean coastline. About 650 of the licences went to Spanish ships.

Morocco blames Spain for the depletion of fish stocks.

Morocco's fishing sector provides jobs for 400,000 people and accounts for 15 percent of total exports. Under the last accord, Morocco earned $130 million a year for fishing rights.

The agreement was the EU's most important external fisheries deal, providing a livelihood for 28,000 people in southern Spain, the Canary Islands and Portugal.