Hong Kong riot police were filmed on Sunday using what appeared to be heavy-handed tactics to arrest a young protester. <br /><br />Footage shows a crowd of media forming on Nathan Road in Tsim Sha Tsui where a young man is on the floor surrounded by riot police.<br /><br />The officers proceed to block any line of sight for reporters, while they pin the youngster to the ground and search his rucksack.<br /><br />The filmer said: "This video towards the end shows what appears to be police physically abusing a young man in their custody who was not resisting arrest."