Later, it was also revealed that some of the group attempted a raid on the settlement for foreigners in Yokohama City, and the attempt, along with the above mentioned attack on the U.S. Envoy, made the foreign envoys nervous.
後に一揆のうちの一部集団には横浜市の外国人居留地を襲撃する計画があったことも発覚し、続く9月のアメリカ公使襲撃（前述）と並んで外国公使らを緊張させた。