EghtesadOnline: Telegram has announced that Iranian citizens will not be allowed to take part in Telegram Open Network initial coin offerings and will be prohibited from buying Gram cryptocurrency by the official Telegram group investor, Russian news agency RBC reported.

EghtesadOnline: Bitcoin fell as much as 7.3 percent in the U.S. after a report claimed Chinese regulators ordered the nation’s digital exchanges to close, the second blow to the $150 billion cryptocurrency market after the country earlier this week outlawed initial coin offerings.

EghtesadOnline: Bitcoin tumbled the most since July after China’s central bank said initial coin offerings are illegal and asked all related fundraising activity to be halted immediately, issuing the strongest regulatory challenge so far to the burgeoning market for digital token sales.