The Foreign Ministry of Ukraine has confirmed that Ukrainian businessman Dmytro Firtash has been arrested in Austria.

"According to Ukraine's embassy in Austria, the report that Dmytro Firtash was arrested at the request of the FBI has been confirmed," Ukrainian Foreign Ministry Spokesman Yevhen Perebyinis said.

The spokesman said that the businessman is at the penitentiary of Vienna. The Ukraine's embassy is clearing up all details on the matter and will try to meet with Firtash.

As a source in Group DF, combining the assets of Ukrainian businessman Dmytro Firtash, told Interfax-Ukraine on Thursday morning, the reason of his detention was investigation of FBI on an investment project in India in 2006, in which Firtash allegedly was involved.

However, the source in Group DF sharply denied there had been any wrongdoing by Firtash.

The agency's interlocutor said that court examination under this case has lasted for several years. Several citizens of India have been arrested in the United States, and one of them allegedly testified against Firtash.

The key businesses of Group DF are fertilizer, titanium, gas and banking sectors, while other areas of the group's operation along with real estate include media business agribusiness, soda ash production and energy infrastructure.

The consolidated revenues of Group DF were about $6 billion, EBITDA – $ 1.3 billion in 2012, according to preliminary unaudited data.