than the U.S. proposal," Nukaga said.

However, according to Nukaga, the U.S. side was reluctant to accept the plan since it was proposed in the final stages of negotiations.

"Is the new proposal aimed at shelving the relocation issue?" Nukaga quoted Lawless as asking.

Nukaga's remark came as the Foreign Ministry began voicing concerns that the relocation dispute may damage Japanese-U.S. relations.

The government had initially pushed for a plan to build an airfield in a training site in Camp Schwab, but the U.S. side was reluctant because it would hinder training.