Investigation into anti-graft death

KUALA LUMPUR, Malaysia - Malaysia's leader pledged on Friday to form a high-level panel to investigate the official anti-graft watchdog's interrogation of an opposition party aide who later mysteriously died.

Teoh Beng Hock was found dead on the roof of a building next to the office of the Malaysian Anti-Corruption Commission in July 2009, hours after agency officials questioned him over the suspected misuse of state funds by his boss.

The case has pressured Prime Minister Najib Razak to address allegations that police and other authorities use excessive force against suspects during interrogation.