Former premier Dr Mahathir Mohamad has welcomed calls for a royal commission of inquiry (RCI) into the BMF and forex scandals.

"They are welcomed to do so (set up an RCI) but we want the same kind of commission into the RM2.6 billion that went into Prime Minister Najib Abdul Razak's accounts and also what happened to 1MDB," Mahathir said at a press conference in Zaid Ibrahim's home in Petaling Jaya today.

His former adversary turned ally, DAP stalwart Lim Kit Siang voiced similar opinions.