The move targets Sukhoi's 90% stake in the joint venture and other assets including five aircraft, Italy's finance police said. The 10% stake owned by Leonardo has not been frozen, they said.
Superjet international is based in Venice and employs around 140 workers in Italy.
($1 = 0.9527 euros)
(Reporting by Francesca Landini, Emilio Parodi, Angelo Amante; writing by Francesca Landini, editing by Maria Pia Quaglia)