Two homeless people, a man and a woman, were found dead on Saturday in the La LlÓntia district of Mataró in Barcelona, the cause of death being animal bites.
There were apparently no signs of the two people having fought back which leads police to believe there was no criminal or homicidal attack.
The man is thought to be aged around 60 years, the woman around 55 years, although their relationship to each other is unknown. It is also thought that the pair had dogs themselves but it is also not known whether these animals participated in the attack, either on their own or perhaps with other dogs in the area.