Queensland police have charged a second teenager over the alleged serious assault of a security guard in Coomera on September 22.

Detectives arrested a 16-year-old Coomera boy in the area on September 23. He was charged with one count of serious assault of a person over 60 and is due to appear in Southport Children’s Court on September 24.

The charge follows the earlier arrest of a 15-year-old Eagleby boy, who was also charged with one count of serious assault of a person over 60.

Police are asking anyone with information to contact Policelink or Crime Stoppers anonymously.