New Delhi, Dec. 11 -- Britain announced sanctions against Russian media and ideas outlets on Tuesday as the U.K's top diplomat warned Western nations must raise their game to combat information warfare from "malign foreign states."

Foreign Secretary Yvette Cooper said the U.K. was imposing sanctions on the microblogging Telegram channel Rybar and its co-owner Mikhail Sergeevich Zvinchuk, the Foundation for the Support and Protection of the Rights of Compatriots Living Abroad - also known as Pravfond and described by Estonian intelligence as a front for the GRU spy agency - and the Center for Geopolitical Expertise, a think-tank run by Russian ultranationalist ideologue Alexander Dugin.

Two China-based firms - i-Soon and the Integrity Te...