Women's judo coach Ryuji Sonoda announced Thursday that he plans to resign in light of allegations that he physically abused members of the Olympic team during training.

"It will be difficult for me to go any further with the training of the team," Sonoda said at a news conference at the Kodokan in Bunkyo Ward, Tokyo.

He said he would submit his resignation to the All Japan Judo Federation in the near future.