Dr Mahathir Mohamad has responded to the cancellation of his invitation to the installation of the new Yang di-Pertuan Agong at Istana Negara on Dec 13.

In a blog post, the former premier said he received an invitation last month, and accepted it because he believed it was a national event which is apolitical.

"It turns out that a national event is part of a political party (event),” he added.