Officials said they believe the remains are those of Russel Rebello, an Indian crew member, ANSA reported.
Searchers are still looking for remains of Maria Grazia Tricarichi, an Italian passenger on the luxury liner when it crashed into rocks off Italy's Tuscan coast Jan. 13, 2012, and eventually sank, killing 32 people.
Meanwhile, in a theater being used as a courtroom in Grosseto, the ship's navigator confirmed Tuesday that Capt. Francesco Schettino ordered him to alter the ship's route on the night it crashed off Giglio island.
Navigator Simone Canessa was the second prosecution witness in the trial against Schettino, who faces up to 20 years in prison if convicted on multiple manslaughter charges and dereliction of duty.
Schettino was accused of ordering the ship's detour as a salute to people he knew on the island and has been criticized for allegedly abandoning ship without overseeing its evacuation.
Schettino claimed his image and actions were misrepresented by investigators and media, saying his actions prevented the disaster being even worse, ANSA said.
"Before leaving Civitavecchia, Commander Schettino told me to wait on the bridge. Then he told me to program a modification of the route Civitiavecchia-Savona to pass next to Giglio," Canessa testified.
The prosecutor also played an audio recording of Schettino talking to Canessa in the control room while the ship was still in Civitavecchia.
"So see what speed we have to do. Let's go by Giglio," Schettino can be heard saying. "Let's do this bow to Giglio. Let's go do this f-----g Giglio thing."
A "bow," Canessa explained, was the practice of making a small detour in the ship's route to greet or salute someone.
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