KUALA LUMPUR, Feb 24 (Sin Chew Daily) — Tun Dr Mahathir Mohamad has resigned as Chairman of Parti Pribumi Bersatu Malaysia (PPBM).

A PPBM statement said Mahathir had resigned as party chairman and the resignation letter had been submitted to party's headquarters in Petaling Jaya today.

Mahathir has resigned as the country's seventh prime minister earlier today.