NHK has reported that a Pokemon Go player asked to enter the restricted area on the grounds of Kumamoto Castle in order capture a Pokemon. Officials have asked Nintendo to remove content that would make gamers want to venture into restricted areas.

http://www3.nhk.or.jp/news/html/20160722/k10010605101000.html 「ポケモン 立ち入り規制の“熊本城”外すよう市が任天堂に抗議」

http://www.bbc.com/news/world-asia-36842259