China's top economic planner Thursday ordered crackdown on hoarding of daily necessities amid a salt panic spreading throughout the nation.

The National Development and Reform Commission said in an urgent notice issued Thursday that local price control authorities should counter rumors about shortages of daily necessities and hoarding of these goods.

It also pledged ample supply of daily necessities including salt, saying it would work with relevant agencies to meet market demand and maintain price stability.

Earlier on Thursday, China National Salt Industry Corp. said the nation has rich salt reserves to meet consumer demands and people need not panic and hoard salt.

Supermarkets in many Chinese cities have run out of salt as a wave of panic buying spred from east China's Zhejiang Province Thursday afternoon to Guangdong, Jiangxi, Guizhou, Sichuan, Jiangsu and Hubei provinces as well as the municipalities of Beijing and Chongqing.

Rumors in some Chinese cities say that radiation has leaked into the sea from the Fukushima Daiichi nuclear power plant, Japan, compromising the safety of salt taken from the sea in the future.

Another reason people have rushed to buy is that salt with iodine is believed to help protect people from nuclear radiation.