Telegram says to cooperate in terror probes, except in Russia

But Durov assured his Russian users that Telegram would continue to withhold their data from security services.

The Telegram encrypted messenger app said it would cooperate with investigators in terror probes when ordered by courts, except in Russia where it is locked in an ongoing battle with authorities.

The company founded by Russian Pavel Durov has refused to provide authorities in the country with a way to read its communications and was banned by a Moscow court in April as a result.