A dog that fatally mauled its handler at a Hong Kong pet training facility was a stray awaiting adoption, the South China Morning Post has learned, with residents living nearby saying they were not worried as the animals at the centre were kept indoors.A check by the SCMP on Friday morning found Pawsgate pet training centre at Ping Yeung Tsuen in Ta Kwu Ling closed a day after the attack. But staff members returned to the facility in the early afternoon to pick up three dogs, with three remaining.According to a source familiar with the facility, the dog involved in the attack on Wong Choi-yi, the 33-year-old owner of Pawsgate, is one year and four months old. It is a brown mixed-breed weighing 30kg, which could have pit bull ancestry – a type banned from import and breeding in Hong Kong.The dog was a stray that had previously been cared for at a car park on Lok Ma Chau Road, but was left without a home when the site closed in April.It was taken in by a dog volunteer and a shelter, before being transferred to Wong’s training centre and pet hotel on August 11 and put up for adoption.Police earlier identified Pawsgate as a facility located at 111 Ping Yeung Tsuen, with a 4,500 sq ft grass lawn, a dog swimming pool, indoor play areas and dog boarding and training services.