Hundreds of residents in Yancheng City, east China's Jiangsu Province, queued to donate blood, after an explosion occurred at a chemical facility in Yancheng on Thursday, killing at least 64 and injuring hundreds. /VCG Photo

Many blood donors even waited at the blood collection site after midnight on the day when the explosion happened. /VCG Photo

On Friday, the blood center of Yancheng said the blood storage was now enough, with the donation as a big help, The Beijing News reported. /VCG Photo

According to Xinhua, thousands of firefighters and medical workers have joined in the rescue. /VCG Photo