The 12 countries involved in the Trans-Pacific Partnership trade negotiations are now planning to only scrap fishing subsidies that clearly cause overfishing, negotiation sources said Thursday.

The United States has been calling for a general ban on fishing subsidies, but with many other TPP countries disagreeing, the members are arranging a limited ban proposed by Japan, the sources said.

The move comes as ministers of the TPP countries began three-day discussions on tariffs and other key issues that require political decisions so their leaders can announce a broad agreement on the pact at a summit next week.