MUSKEGON, Mich. — Hundreds of people in Michigan came together to say a tear-filled final goodbye to a cancer-stricken dog that served three tours in Afghanistan with the US Marines.

Cena, a 10-year-old black lab, received a hero’s farewell Wednesday before being euthanized at the USS LST 393, a museum ship in Muskegon, and carried off in a flag-draped coffin.

The dog, recently diagnosed with terminal bone cancer, was a bomb-sniffer for the Marines until his retirement in 2014. The celebration for Cena was organized by his owner, Lance Corporal Jeff Young, who was paired with the dog in 2009 and 2010 while on a combat tour in Afghanistan and who adopted him in 2014. Cena then became DeYoung’s service dog to help him with post-traumatic stress disorder.

DeYoung took the dog on one last ride in a topless Jeep that was decorated and named ‘‘Cancer Response Team.’’

associated press