A safe containing about HK$4 million worth of jewellery was stolen from the Mid-Levels residence of a local businessman. The burglars scaled bamboo scaffolding that had been erected for renovation work at Wealthy Heights in MacDonnell Road, police said yesterday. They climbed into the 31st-floor flat through an unlocked window while the occupants were out in the afternoon, one police source said. "The culprits apparently failed to break into the safe, so they removed it from its installation in the master bedroom wardrobe," the source said. "They escaped with the safe through the same route used to sneak into the flat." He said there were no obvious signs of the bedroom having been ransacked. The break-in was discovered at about 11.30pm on Thursday when the businessman, 61, wanted to put something in the safe and found it missing. He then called police. Land Registry records showed the flat was bought by Joachim Chu Chee-kong and Tang Kan in 1996 for HK$13.68 million. READ MORE: Jewellery stolen from luxury Mid-Levels flat in Hong Kong Detectives are checking security camera footage in an effort to identify the intruders. The break-in was one of two burglaries reported to police within an hour on Thursday night. Two flats at Sharon Court in Ho Man Tin were burgled, with HK$213,000 in cash and valuables stolen. The tenants returned home at about 10.30pm on Thursday and found their flats had been ransacked. The case came to light at about 10.30pm yesterday when tenants returned home and found their flats had been ransacked. Detectives from Kowloon City police district are investigating. No arrests were made in any of the cases. Despite a string of high-profile crimes in exclusive areas of Hong Kong Island this year, overall burglary figures are down nearly 9 per cent - to 1,284 in the first six months - compared with the same period last year. They involved burglaries or attempted break-ins at the homes of Asia’s richest man, Li Ka-shing , and the Indian and Australian consuls general.