Bulgarian law enforcement authorities on Friday arrested a 43-member criminal group suspected of financing terrorist activities abroad, Deputy Prosecutor General Ivan Geshev told reporters.

"It is not about a terrorist threat on the territory of the country. It is also not about financing terrorist activity in Bulgaria. This is about non-bank money transfers to foreign countries," Geshev said.

The authorities searched over 50 addresses in seven towns in Bulgaria, as well as cars, he said.

"Among the detainees there are foreigners. I cannot say how many. There are also Bulgarian citizens," Geshev said.

The investigation began one year ago, and Bulgarian authorities worked in cooperation with "almost all of our important European partner services," he added.