U.S. farm groups said Wednesday Japan should be suspended from Pacific trade talks if it insists on keeping tariffs on sensitive agricultural sectors.

Akira Amari, a Cabinet minister in charge of the talks, told Trans-Pacific Partnership trading partners at talks in Singapore last week that Japan will not drop all tariffs on wheat, rice, dairy products, sugar, beef and pork.

U.S. and Japanese negotiators will hold two more days of meetings on farm exports in Washington from Thursday. Groups representing dairy, wheat, rice and pork farmers said they could still reach a deal.