I think bitcoin not announced that it will be ban but i heard there are ICO was already delisted that i think only ICO was ban not the whole cryptocurrency
If you heard that bitcoin is ban its a fake news better to look for btcc exchange or any china exchanges use the google built in translator to read and to see that fact that there is no bitcoin ban..
People are just panic selling even they are not reading the real source.
For now we are seeing more price drop and i think panic selling will still no ended..
You are right they only ban fundraising for ICOs and did not ban bitcoin in china. But yesterday an exchange (BTCChina) stop its services in china but other exchanges are working and they said that they do not receive any instruction from central bank of china. These are only media rumors which leads the investors to sell bitcoins which drop the price of bitcoin.