India says its Supreme Court must approve the return of an Italian marine to his country while international arbitration plays out in the case accusing him and another marine of fatally shooting two Indian fishermen in 2012.

The Indian Foreign Ministry says an order expected Tuesday from the international tribunal in The Hague does not allow Salvatore Girone to return to Italy on bail, as the Italian foreign ministry has suggested.

Instead, it says the tribunal's decision affirms the Indian court's authority in the case and asks both countries to approach the court about Girone's bail terms.

India accuses Girone and Massimiliano Latorre of the shootings while they were assigned to anti-piracy duties aboard an Italian ship. Italy says they opened fire thinking the fishermen were pirates in international waters.