VICTORIA — British Columbia’s election agency says it has discovered that a ballot box containing 861 votes wasn’t counted in the recent provincial election, as well as other mistakes, including 14 votes going unreported in a crucial riding narrowly won by the NDP.

Elections BC says omission of the ballot box did not affect the result in Prince George-Mackenzie, while the unreported votes in Surrey-Guildford were discovered last week during preparations for a judicial recount in the riding, where Garry Begg’s 27-vote victory propelled the New Democrats to a one-seat majority government.