José Rafael Ojeda Durán, Secretary of the Navy, during a memorial tribute to Frida, a canine rescue dog of the Mexican Navy Secretariat (SEMAR), at its facilities in Mexico City, after she died on 15 November due to age-related problems. (Photo by Gerardo Vieyra/NurPhoto via AP)

José Rafael Ojeda Durán, Secretary of the Navy, during a memorial tribute to Frida, a canine rescue dog of the Mexican Navy Secretariat (SEMAR), at its facilities in Mexico City, after she died on 15 November due to age-related problems. (Photo by Gerardo Vieyra/NurPhoto via AP)

At the far right, José Rafael Ojeda Durán, Secretary of the Navy, during a memorial tribute to Frida, the canine rescue dog of the Mexican Ministry of the Navy (SEMAR), at its facilities in Mexico City, after she died on 15 November due to age-related problems. (Photo by Gerardo Vieyra/NurPhoto via AP)

Authorities of the Ministry of the Navy paid a mournful tribute to Frida, a rescue canine binomial of that agency, at its facilities in Mexico City, after she died on November 15 due to problems related to her age. (Photo by Gerardo Vieyra/NurPhoto via AP)

A group of volunteer rescuers and their pets attend the mourning tribute to Frida, a canine rescue dog of the Mexican Navy Secretariat (SEMAR), at its facilities in Mexico City, after she died on 15 November due to age-related problems. (Photo by Gerardo Vieyra/NurPhoto via AP)

In the centre, a canine binomial and her handler, during a mourning tribute to Frida, a canine rescue binomial of the Mexican Navy Secretariat (SEMAR), at its facilities in Mexico City, after she died on 15 November due to age-related problems. (Photo by Gerardo Vieyra/NurPhoto via AP)

A group of volunteer rescuers and their pets attend the mourning tribute to Frida, a canine rescue dog of the Mexican Navy Secretariat (SEMAR), at its facilities in Mexico City, after she died on 15 November due to age-related problems. (Photo by Gerardo Vieyra/NurPhoto via AP)

José Rafael Ojeda Durán, Secretary of the Navy, and Israel Arauz, handler of Frida, canine rescue dog of the Mexican Navy Secretariat (SEMAR), hold her ashes inside their facilities in Mexico City, after she died on November 15 due to age-related problems. (Photo by Gerardo Vieyra/NurPhoto via AP)

José Rafael Ojeda Durán, Secretary of the Navy, during a guard of honour for Frida, canine rescue dog of the Mexican Secretariat of the Navy (SEMAR), at its facilities in Mexico City, after she died on 15 November due to age-related problems. (Photo by Gerardo Vieyra/NurPhoto via AP)

José Rafael Ojeda Durán, Secretary of the Navy, during a guard of honour for Frida, canine rescue dog of the Mexican Secretariat of the Navy (SEMAR), at its facilities in Mexico City, after she died on 15 November due to age-related problems. (Photo by Gerardo Vieyra/NurPhoto via AP)

Authorities of the Ministry of the Navy paid a mournful tribute to Frida, a rescue canine binomial of that agency, at its facilities in Mexico City, after she died on November 15 due to problems related to her age. (Photo by Gerardo Vieyra/NurPhoto via AP)

View of an urn with ashes and statue of Frida, canine rescue dog of the Mexican Navy Secretariat (SEMAR), during a mournful tribute at its facilities in Mexico City, after she died on 15 November due to age-related problems. (Photo by Gerardo Vieyra/NurPhoto via AP)

In the centre, José Rafael Ojeda Durán, Secretary of the Navy, during a memorial tribute to Frida, a canine rescue dog of the Mexican Navy Secretariat (SEMAR), at its facilities in Mexico City, after she died on 15 November due to age-related problems. (Photo by Gerardo Vieyra/NurPhoto via AP)

In the centre, Israel Arauz, handler of Frida, canine rescue dog of the Mexican Secretariat of the Navy (SEMAR), during a mourning tribute at its facilities in Mexico City, after she died on 15 November due to age-related problems. (Photo by Gerardo Vieyra/NurPhoto via AP)

In the centre, Israel Arauz, handler of Frida, canine rescue dog of the Mexican Secretariat of the Navy (SEMAR), carries her ashes during a mourning tribute at its facilities in Mexico City, after she died on 15 November due to age-related problems. (Photo by Gerardo Vieyra/NurPhoto via AP)