Police in the Czech Republic have arrested several men on charges of inciting terrorism, including in Russia's volatile North Caucasus region, the CTV news agency reported on Tuesday.
Police suspect the eight men of forging documents, and smuggling weapons and explosives.
"Two of the suspects, citizens of Bulgaria, are charged with involvement in an organized criminal group that has been active in several countries. Five others were planning a terrorist attack," CTV said, citing police. "The eighth suspect is a Chechen national. He is charged with illegal arms possession and forging money."
Six of the suspects are in custody in the Czech Republic, while the other two are at large in Germany, police said.
The identities of the suspects have not been made public.
Russia has been fighting an Islamist insurgency in the mainly-Muslim North Caucasus for over a decade, including two wars in Chechnya. Regular terrorist attacks often spread to Moscow and other parts of Russia.
MOSCOW, May 3 (RIA Novosti)