Japanese Finance Minister Shoichi Nakagawa is being forced to resign following embarrassing drunk incident at Group 7 (G7) press conference.

He is reported to have seeking medical treatment on Tuesday, a day after he denied he was drunk at a G7 news conference and said cold medicine had affected his behaviour.

He earlier told reporters he would submit a note from a doctor about the medicine that he took during the trip. Prime Minister Taro Aso asked Nakagawa on Monday to stay in his post, but analysts said opposition parties would keep pressing for the minister’s resignation.