United Kingdom, March 9 -- Harry Potter bosses are reportedly clamping down on bullying allegations between cast members and crew.

Filming is underway for the upcoming HBO revival of the wizarding saga based on JK Rowling's novels, but senior management are said to be dealing with the issues within the production, as well as two 12-year-old extras allegedly fighting in between shoots.

A source told The Sun newspaper: "There are a lot of youngsters on set at any one time, and the reality is that not everyone is going to get on.

"It's an alarming problem and bosses want to get rid of any bad eggs among the cast and crew.

"Bosses have issued warnings about behaviour. The bullying accusations have involved adults and children."

The show ...