SEOUL, South Korea (AP) — U.S. and South Korean officials have publicly acknowledged the allies remain far apart in negotiations for increasing South Korea’s contributions to the costs for maintaining the American military presence on its soil.

U.S. negotiator James DeHart said the U.S. side decided to cut short a meeting that lasted less than two hours Tuesday, because Seoul’s proposals “were not responsive to our request for fair and equitable burden sharing.”

Seoul’s Foreign Ministry says Washington is calling for a “drastic increase” in South Korea’s contributions which the country finds unacceptable.

The turbulent negotiations come at a delicate time for the allies, which are also squabbling over Seoul’s declaration to terminate a 2016 military intelligence-sharing pact with Japan amid a bilateral row.