Watch: The last surviving 9/11 search and rescue dog is given a final salute before being euthanised

A 16 year old golden retriever named Bretagne, believed to be the last surviving search and rescue dog that scanned the wreckage of the World Trade Centre for survivors was euthanised on Monday.

The canine and her owner Denise Corliss were deployed at Ground Zero by the Texas Task Force 1. For over two weeks they spent twelve hours a day trying to recover as many people as they could.

Afterwards, Bretagne became a therapy dog for survivors who could pat her as they shared their stories of that day. She was also deployed to New Orleans in the aftermath of Hurricane Katrina. In more recent years she worked as a local fire department search and rescue dog.

Bretagne was euthanised after she had slowed down considerably due to her old age. She received a final salute from emotional firefighters and rescue workers from the Cy-Fair Fire Department in Harris County, Texas.