This week the government of China reminded their populace that online lottery sales are illegal, and that they'll be clamping down on the activity in the near future to curb the activity.
The government, citing 12 different ministries and commissions, put out a communication notice to residents that related that they're "resolutely prohibiting the unauthorized use of the Internet to sell lottery tickets" and will work to "seriously investigate and deal with corporate or personal illegal and illegal online sales."
China is planning on clamping down on other online sales as well, as the Ministry of Culture and Tourism also clamping down on unauthorized sales on online games. The banking systems will also be monitoring transactions as well to help enforce the laws. Telecommunications groups will also monitor traffic and will work on censoring sites that offer illegal services such as online lotteries.
Players aren't immune to punishment either, as they could face fines or criminal sentences for participating in the lotteries. If you're located in the country, it's likely wise to avoid playing lotteries or betting online for the time being.