Russia’s Federal Security Service (FSB) says it has foiled what it described as a planned attack targeting senior officials of the country’s media and communications regulator Roskomnadzor.

Telegram founder Pavel Durov has criticized the reported slowdown of the messaging platform in Russia, comparing the situation to Iran’s failed attempt to block the service several years ago.

Russian authorities are preparing to begin measures to slow the operation of the Telegram messaging service.

WhatsApp said on Tuesday that Russian authorities are restricting access to its service, after thousands of users reported outages and slowdowns across the country.

Roskomnadzor (RKN) issued five decisions on the Discord service regarding its operation in Russia from September 20, News.Az reports citing Kommersant .