Hong Kong teen protest leader defiant as he reports to police for democracy camp investigation

The teenage face of Hong Kong's monthslong democracy protests struck a defiant note as he turned himself in for possible arrest.

Eighteen-year-old Joshua Wong flashed a victory sign while reporting to a police station on Friday with three other members of his student group.

They're among a number of activists and pro-democracy lawmakers who have been told to go to police headquarters to help with the investigation into street protests that authorities declared illegal.

The student-led protesters shut down streets in three areas of the southern Chinese financial hub last fall to demand greater electoral freedom from Beijing.

After police cleared out the last protest camp in mid-December, they vowed to investigate and arrest the "principal instigators" within three months.