After dark, these YouTubers watch over an unlikely charge – a shark stuck in a South Korean canal

In Busan, South Korea, a large gray shark named Bukang-i has remained trapped in a canal for over a month. South Korean officials are currently struggling to free the animal. Meanwhile, a group of self-appointed guardians known as jagyeongdan, who wear hi-vis vests and carry selfie sticks, watch over the shark each night. This unusual situation has attracted more than 1.6 million visitors to the harbour, where the YouTubers maintain a constant vigil over the creature.