BEIJING: A senior official on Monday called for greater efforts against commercial bribery.

He said, though the campaign launched in 2005 to crack down on commercial bribery had been fruitful, the task ahead was still arduous.

He called on governments at all levels to work harder to investigate bribery cases involving public servants and family members of leading officials.

Special attention should also be paid to transnational bribery cases, the act of offering bribes and the supervision of Chinese enterprises running business abroad, He said.