A body was discovered stuffed in a suitcase in a Shamshuipo flat last night. The suitcase, dripping blood, was found by the landlord of the flat in Castle Peak Road when he went to collect overdue rent from a tenant. He called police, who opened it and made the gruesome discovery. Police said that the body was of a woman in her 20s, and that she had been dead for about 10 days, judging from the state of decomposition. Her identity was not known. Homicide detectives are now searching for the tenant, identified as Ngai Man-tak, who rented the room for about six months for $2,000 a month. The landlord told detectives that he had rented one of the five rooms in the flat to 25-year-old Mr Ngai, who fell two months overdue on his rent. When he failed to contact the tenant, he called a locksmith to open the room just before 9.30pm, then found the bag, measuring one metre by 1.2 metres. The landlord told police he last spoke to the tenant early this month. He said the man had refused to pay his rent. The five rooms in the 800-square-foot flat were all rented by single people through a nearby property agency. An investigating officer said they were puzzled by the fact that the other four tenants claimed to know nothing about the incident and had made no complaint about the smell coming from the room. The tenants told police they had not seen Mr Ngai since the Lunar New Year holiday and they had not noticed anything unusual. 'We are taking statements from them and hope they could shed some light to the case,' said the officer. A postmortem examination is scheduled to be conducted later today to determine the cause of death. Police have yet to officially classify the case, but the officer said it would be treated as a murder.