Chinese Premier Wen Jiabao said on Thursday that the government's top priority is to "protect people's life."
Design flaws in the railway signal equipment led to Saturday's fatal high-speed train collision near Wenzhou in Zhejiang province.
The accident occurred after high-speed train D3115 was allegedly hit by lightning and lost drive, and then rear-ended by another bullet train D301.
The former train was running from the provincial capital Hangzhou to the southeastern city of Fuzhou, and the latter one traveled from Beijing to Fuzhou.