Top naval officials attended the burial of the captain and three crewmen of a Peruvian submarine that collided with a Japanese fishing boat and sank in 110 feet of water.

Naval crane operators aboard barges renewed their efforts Monday to lift the U.S.-built Pacocha, an 1,870-ton diesel submarine, from the ocean floor 4 miles west of the port of Callao northwest of Lima.The Pacocha collided Friday night with the Kyowa Maru, a Japanese tuna boat, outside the El Callao harbor and sank.

Seven crewmen died but 45 others survived, including 21 saved nearly 24 hours after the crash in a daring undersea rescue operation as chlorine slowly poisoned the air supply in the sunken vessel.

Defense Minister Enrique Lopez Albujar and top naval officials gave maximum honors to Capt. Daniel Nieva, 37, at a private burial ceremony in Lima Sunday. Japanese Ambassador to Peru Seo Masaki also attended the burial.

Three other crewmen were buried at a separate cemetery in El Callao, the Andina news agency said.