SHANGHAI - The health authority of East China's Zhejiang province is investigating a kickback scandal at five major hospitals in the province revealed by an online post, local health officials said on Saturday.

More than 200 doctors in five well-known hospitals in the province's Hangzhou and Ningbo cities were accused on Thursday of taking kickbacks from Hangzhou Haijiang Pharmaceutical Technology Co Ltd, a pharmaceutical sales agency.

A netizen, who goes under the name of Xiaoyu and claims to be a former employee of the agency, published a post on a major Internet forum in Ningbo on Thursday, listing the doctors' names, their employee ID numbers, departments and the amounts they took in January.