RABAT  - The Moroccan and Spanish foreign ministers said on Friday their countries would hold talks about overlapping areas of ocean that they both claim rights to in the North Atlantic.

The territorial waters Morocco has claimed include the coast off Western Sahara, a territory that has been contested between Morocco and the Algerian-backed Polisario Front since the Spanish colonial period ended in 1975.

Morocco's parliament passed two bills this week to give domestic legal cover to a coastal area the North African country already controls, causing concern in Spain's Canary Islands, where the government warned of overlaps with Spanish territorial waters.

Morocco's foreign minister Nasser Bourita said that defining territorial waters was a "sovereign right" and that his country aimed to upgrade domestic law in compliance with the UN law of the sea convention.

"In case of overlaps, international law requires states to negotiate," said Bourita following talks with his Spanish peer, Arancha Gonzalez Laya.

"Morocco rejects unilateral acts and fait accompli," he said, adding that Spain was a "strategic partner" and Morocco's largest trading partner.

Gonzalez Laya said Morocco's willingness to negotiate "reassures the Canary Islands".

"Morocco is a source of stability for Spain," she said, citing "close cooperation" in the fight against jihadists and illegal migration.

(Reporting by Ahmed Eljechtimi; Editing by Hugh Lawson) ((ahmed.eljechtimi@thomsonreuters.com;))