He is believed to be the only australian living in north korea and the abc understands friends of mr sigley reported him missing earlier this week. Alek sigley 29 who is believed to be the only australian living in north korea went missing this week after a series of tweets about life in the mysterious capital of pyongyang. Alek sigley left 29 who is believed to be the only australian living in north korea went missing this week after a series of posts on social media about life in the mysterious capital of.