Diplomats at a United Nations conference in Busan, South Korea, failed to reach agreement on the world’s first treaty to tackle plastic pollution on Sunday. They said they would reconvene in future months to try again.

Oil-rich nations like Saudi Arabia strongly oppose efforts to reduce plastic production and use procedural tactics to delay negotiations.

Delegates from more than 170 countries huddled for a week of marathon negotiations but came up short on delivering a treaty.

Negotiators working on a treaty to address the global crisis of plastic pollution won’t reach an agreement in South Korea and are making plans to resume the talks next year

Delegates from more than 170 countries attempting to negotiate a treaty to curb global plastic pollution ended a weeklong meeting in Busan early Monday without an agreement, pushing talks to another session next year.

Global talks to forge a landmark treaty aimed at reducing plastic pollution broke down after negotiators from more than 170 countries remained deadlocked over how to curb the world’s growing mountain of plastic waste.