Jewish teens help save drowning man’s life. As it turns out, the man has a swastika tattoo on his hand.

Jewish Massachusetts teens are being credited with helping to save a man's life after he began drowning in a local reservoir last week.

What are the details?

According to WBTS-TV, four Jewish teens saw the victim bobbing in the Chestnut Hill Reservoir while walking along the body of water on Thursday night.

The teens flagged down a police officer and reported that they'd seen a person in trouble in the water.

"As I approached [the teens], two of them ran up to my car," Boston College Police Officer Carl Mascioli told the outlet. "There was a body in the water."

The officer ran to the reservoir and confirmed that there was indeed a man lying motionless in the water. Mascioli determined that the unnamed man didn't have much time left.

When the officer pulled the unidentified man from the water, he noticed the tattoo of the Nazi symbol on the man's hand.

"While I was pulling him out of the water, I also observed that he had a swastika on his hand," Mascioli told the outlet.

"I kind of let the gentleman know sometimes good deeds have a funny way of turning around," the officer said. "[The teens'] good deed had a little bit of a twist to it."

What was the teens' reaction?

The teens, who were not publicly identified, said that they had no regrets about helping to save the man's life — but noted that they did want the man to know that "it was four young Jewish boys that helped save his life."

"A good deed is a good deed and that's part of life," Mascioli said. "We should be helping everybody out."

Authorities say that the man is expected to make a full recovery.