Officials in California found the body of a Massachusetts man on Sunday a day after he disappeared under the water while attempting to rescue two people in Lake Tahoe.

Sayan Sengupta, a 27-year-old Boston resident, was operating a rental boat carrying 13 people near Dollar Point Pier in the northern part of the lake around 5 p.m. Pacific time on Saturday when two passengers, who were being towed behind the boat in inner tubes, fell into the water and became distressed, the Placer County Sheriff’s Office said in a statement on Facebook Sunday.

Sengupta jumped into the lake to help the passengers. While swimming toward them, he slipped under the water and did not resurface, police said.


The two passengers were able to get out of the water by themselves, according to Lt. Andrew Scott of the sheriff’s office.

Sengupta’s body was found around 3:45 p.m. Pacific time (6:45 p.m. Eastern time) after police continued their search of the area with underwater sonar and a remotely operated vehicle on Sunday, officials said.

Scott said it is not uncommon for people to suffer from muscle cramps in the lake, adding that life-vests “are a must.”

“The water is extremely cold,” he said.

Correction: Due to inaccurate information provided to the Globe, an earlier version of this story misspelled the first name of Sayan Sengupta.

Abigail Feldman can be reached at abigail.feldman@globe.com.